BERİA CATALOG YAPIM
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IBERIA COMPANY<br />
READY-MIXED CONCRETE<br />
2019/ <strong>CATALOG</strong>
ABOUT US<br />
IBERIA READY-MIXED CONCRETE was established in 2010 to serve only Iraq-Erbil<br />
region and started to produce with 60 m3/h capacity facility, 8 transmixers and 2<br />
concrete pumps. IBERIA made its name in short time with its production quality and<br />
professional management and became the leader in the ready-mixed concrete sector.<br />
In order to meet the increasing demand more easily, it has opened its 2nd station in<br />
Erbil Region in 2012, 3rd station in 2013 and 4th and 5th stations in 2014 and still<br />
holds the leadership in the sector. In the following years it has extended its service out<br />
of Erbil Region and continues its service with the stations opened in Baghdad and<br />
Dohuk provinces in 2016.<br />
Following the developments and innovations in the ready-mixed concrete sector<br />
closely with its professional administrative staff, IBERIA READY CONCRETE is<br />
renewing its existing facilities within this understanding. With a total of 6 readymixed<br />
ready-mixed concrete facilities in Erbil, Duhok and Baghdad provinces, its<br />
average production capacity has reached up to 800,000-1,000,000 m3 in recent years<br />
and riveted the leadership position in the region. Our company gives great importance<br />
to quality at every stage of production and ensures that quality is always maintained<br />
at the best level by controlling its products and services at every step. Iberia is<br />
extremely sensitive to the environment, proving its corporate seriousness with its<br />
modern filters, recycling systems and periodic “Emission and Air Quality<br />
Measurement Tests”.<br />
In addition, with its experienced workshop, all the maintenance, repair and<br />
renovation works are carried out in its own premises quickly.<br />
Our Company, which all of its facilities are in operation, has been laying the<br />
foundations of safe and solid constructions with its scientific and innovative service<br />
concept for 6 years. Customer satisfaction is our top priority and our only goal is to<br />
provide economic service to our customers without compromising our quality<br />
standards. More than 1000 concrete experiments are carried out in IBERIA<br />
Laboratory within the scope of R&D, recipe optimization and special product studies.<br />
These experiments are comprised of Special Product Experiments, Aggregate<br />
Performance Experiments, Cement Performance Experiments, Chemical Additives<br />
Experiments, Mineral Additives Experiments and Project Specific Solution<br />
Experiments. In addition to these experiments, Agrega Pollution Experiments (Blue<br />
Methylene, Clay Determination, Sand Equivalent, CaCO3 Test) and Aggregate Sieve<br />
Analyzes are performed periodically in IBERIA Laboratory. The total number of<br />
experiments done in one year with these experiments is more than 3000.
Iberia Ready Mix Concrete Company<br />
QUALITY, ENVIRONMENT AND OCCUPATIONAL HEALTH AND<br />
SAFETY POLICY<br />
Iberia Ready Mix Concrete Company is a leading Company in the Design,<br />
Manufacture and supply of Ready Mix Concrete in all over the Iraq, respect<br />
the sustainable development and motivate all employees to protect the<br />
environment.<br />
Iberia Ready Mix Concrete Company will therefore:<br />
• Ensure that the company complies with appropriate legislation and<br />
regulations<br />
• Identify and evaluate the environmental aspects associated with<br />
Concrete Production and other supportive process in order to control and<br />
reduce any environmental impact, including the prevention of pollution<br />
• Ensure the responsible use of natural resources and the minimization<br />
of waste and energy consumption<br />
• Train the employees regularly to make them aware of environment<br />
• Take the necessary precautions for the environment to not be exposed<br />
to harm as a result of operations.Take all necessary and reasonable<br />
measures to avoid corruption and bribery<br />
Iberia Ready Mix Concrete Company also aims to achieve high levels of<br />
customer satisfaction by delivering durable, high quality concrete Products<br />
and services within agreed timeframes.<br />
To support the above statement, Iberia Ready Mix Concrete Company has<br />
implemented an integrated Management System that meets the<br />
requirements of ISO 9001:2008 and ISO 14001:2004.<br />
Compliance and improvement is monitored by process measures and<br />
internal audits and is maintained by the timely implementation of<br />
preventive and corrective actions.<br />
Meeting these standards is the responsibility of the each staff of the<br />
Company.
WHAT IS READY-MIXED CONCRETE?<br />
Concrete is an important building material which is formed by mixing the<br />
aggregate (fine and coarse aggregate), cement and water with or without the<br />
addition of chemical and mineral additives, homogeneously in accordance with<br />
the production technology, with plastic consistency at the beginning and<br />
solidifying and strengthening with time.<br />
Ready-mixed concrete is prepared by a non-user person or organization and<br />
delivered in fresh condition. The concrete prepared by the user outside the<br />
construction site and the concrete prepared by the persons or organizations<br />
other than the user in the construction site are included in the definition of<br />
“ready-mixed concrete”. The concrete produced by the user only within the<br />
construction site for its own use falls within the definition of “concrete<br />
manufactured at the construction site”.<br />
Ready-mixed concrete designed with scientific methods should be produced<br />
and controlled according to the standards in modern facilities which make the<br />
component weighing automatically by weight method. There are 5 fundamental<br />
steps which determine the quality of ready-mixed concrete: • Design •<br />
Production • Transportation • Placement • Maintenance and Cure<br />
The first three steps are carried out by the ready-mixed concrete producer, and<br />
the last two steps are carried out by the consumer. Today, there is no other<br />
construction material taht is used as frequaently as ready-mixed concrete.<br />
Benefits and Advantages of Ready-mixed Concrete • Fast • Continuous<br />
availability • Possibility of control at every stage • Optimum material usage •<br />
Time and cost saving • Environmentally friendly<br />
What are the Components of Ready-mixed Concrete? The raw materials that<br />
make concrete are aggregate, cement, water, chemical and mineral additives.<br />
Cement : 13 % Water: % 7 Aggregate: % 80 According to TS EN 206-1 readymix<br />
concrete standard the conformity to own standards of all component<br />
materials must be shown.
AGGREGATE Aggregates, which are the<br />
most used component of concrete in<br />
volume, must be stored as produced<br />
according to related product standard<br />
at ready-mix concrete facilities<br />
properly. Aggregatesö which have the<br />
lowest water absorption value, and do<br />
not produce enlarging materials in<br />
concrete with cement in time, have<br />
relatively cubic particleshape are<br />
quality aggregates. Particle size can be<br />
adjusted at aggregate production<br />
facilities as needed.<br />
CEMENT They are inorganic and finely<br />
ground hydraulic binders that form a<br />
hardening paste when mixed with<br />
water and maintain its strength and<br />
stability even under water after<br />
hardening. The most suitable cement<br />
type for ready-mixed concrete<br />
producers is cement which is the most<br />
compatible with aggregate and<br />
chemical additives and provides the<br />
best response to customer<br />
expectations, providing the lowest<br />
cement usage provided that it is based<br />
on concrete classifications.<br />
MIXING WATER In addition to the<br />
mixing water added during the<br />
concrete production phase, addition of<br />
more water should be prevented at the<br />
place of use.
CONCRETE ADDITIVE MATERIALS Today, besides the additives that decrease the<br />
concrete water requirement and therefore provide more strength and<br />
economy, chemicals that affect many properties of concrete such as resistance<br />
speed, air content, impermeability, shrinkage etc. are used. Thanks to the<br />
chemical additives, it is possible to produce concretes that do not shrink<br />
anymore, are self-locating, are not affected by aggregate reactivity, are<br />
prevented from reinforcement corrosion and have superior strength.<br />
READY-MIXED CONCRETE CLASSES Classification in TS EN 206-1 ready mixed<br />
concrete standard is, the environmental impact classes according to the<br />
exposed area, consistency classes, aggregate largest grain classes, compressive<br />
strength classes and classification dependent on density. The compressive<br />
strength classes that are the most known and used ones among these classes<br />
are given below.<br />
READY-MIXED CONCRETE PRODUCTION STATIONS Concrete Plant is a facility<br />
where ready-mixed concrete components are stored, mixed under control,<br />
concrete is produced and filled into transmixers. Concrete plants are divided<br />
into two as wet and dry mixes according to mix form and bunk and star type<br />
according to storage form.<br />
WET SYSTEM READY-MIXED CONCRETE PRODUCTION The wet system readymixed<br />
concrete production is done by the mixing method in the central mixer in<br />
the concrete plant. The fresh concrete, which is prepared as all components in<br />
the concrete design recipies in accordance with the standards are mixed in<br />
concrete plants that have automation system, is transported by means of<br />
transmixers to the delivery site that is determined by the customer. Initiation<br />
and completion of the mixing process of the concrete materials are done in the<br />
central mixer in the concrete plant. The mixers used for this purpose are<br />
generally forced palet mixers.<br />
least 5 minutes at the mixing cycle of the transmixer (at least 10 rpm).
LABORATORY STUDIES<br />
As Iberia ready-mix concrete, we have adapted production with globally<br />
accepted quality and satandards, and doing research and development studies<br />
in this direction as our principle to improve the ready-mix concrete sector<br />
which has an important potential in the field of construction in Northern Iraq<br />
and Baghdad region.<br />
In our company we value laboratory and team work in high quality concrete<br />
production. Before procurement of the materials, the raw materials that are<br />
required to be delivered to the fieldare tested onsite and previous test results<br />
are checked. The physical and chemical tests of aggregates, cement and<br />
chemical additives that are delivered to the concrete field are done as daily,<br />
weekly and monthly periods. Compliance reports and mixture formulations are<br />
prepared. During concrete production phase, the factors that may affect the<br />
continuity of production in desired consistency and quality in the concrete plant<br />
are detected and corrected by the labaratory team.<br />
Another important point for concrete is the usage of chemical additives that<br />
remove the seasonal effects affecting quality and strength. The specifications,<br />
effects, and usage rates are determined appropriately to the standards by the<br />
laboratory team and usage reports are prepared. It comprises technical staff<br />
and equipment to detect harmful effects after concrete production while<br />
transporting and to instantly deal with possible negative situations. It is our<br />
duty to make fresh concrete tests during concrete pouring and collecting<br />
suitable samples from field, keeping these samples in water pools, applying 7<br />
and 28-day pressure tests on samples at appropriate dates and reporting these<br />
to our valuable customers. Besides the concrete, which is the product of our<br />
R&D and quality studies, that has high strength and conforms global standards,<br />
lightweight concrete that has low unit weights (400 -1750 kg/m³ ) and foam<br />
concrete are at your service for your special and sensitive constructions. It is<br />
necessary to take into consideration the environment, and diversity of<br />
constructions during concrete production. After determining these conditions<br />
and project details, various concrete classes in different standards are included<br />
in the production plans subsequently intense R&D and quality controls.
PRE-CAST CONCRETE SECURITY BARRIERS<br />
IBERIA is a specialist manufacturer of a full range of concrete products,<br />
including architectural and structural precast concrete, Precast Security<br />
Barriers,<br />
With security issues being at the top of everyone’s agenda, precast concrete<br />
security barriers can be an integral part of the security plans of industry,<br />
government and the general public. Iberia concrete security barriers are used<br />
to protect gate entrances, industrial facilities, military bases, government<br />
buildings, airports, schools and stadiums from potential terrorist attacks and<br />
vehicular accidents.<br />
Iberia concrete security barriers are manufactured with steel reinforced high<br />
strength 5000 p.s.i. concrete providing maximum durability. Iberia<br />
manufacturing facilities are NPCA (National Precast Concrete Association)<br />
certified insuring total quality and durability.<br />
NEW JERSEY BARRIER<br />
2,20 X 0,80 M - 3 x 0,80 M<br />
TEXAS<br />
2,10 x 2 M - 1,75 x 1,80 M<br />
GUARD TOWER<br />
6.6 x 2.6 x 0.3 M<br />
T-WALL<br />
2,45 M - 3,60 M - 4,50 M - 6 M<br />
BOX CULVERTS<br />
2,5X3X2<br />
BUNKER<br />
Dimensions - 2X2X2,5
PILES<br />
Precast Reinforced Concrete Piles:<br />
Precast Concrete Piles may be defined as a reinforced concrete pile, which is<br />
moulded in circular, square, rectangular or octagonal form. The precast concrete<br />
piles are cast and cured in a casting yard and then transported to the site for<br />
driving. Piles can be cast and cured near the work-site if there is a long distance.In<br />
case space is available, pile can also be cast and cured near the site of works. They<br />
are driven in a similar manner as timber piles with the help of pile drivers. Iberia<br />
Company provides a big range of precast concrete piles<br />
Driven or displacement piles They are usually pre-formed before being driven,<br />
jacked, screwed or hammered into the ground. This category consists of driven<br />
piles of steel or precast concrete and piles formed by driving tubes or shells<br />
which are fitted with a driving shoe. The tubes or shells are filled with concrete<br />
after driving.The tubes or shells which are filled with concrete after driving. Also<br />
included in this category are piles formed by placing concrete as the driven piles<br />
are withdrawn.<br />
Bored or Replacement piles They require a hole to be first bored into which the<br />
pile is then formed usually of reinforced concrete. The shaft (bore) may be eased<br />
or uncased depending upon type of soil.<br />
• Concrete piles may be precast, prestressed, cast in place, or of composite construction.<br />
• Precast concrete piles may be made using ordinary reinforcement or they may be<br />
prestressed.<br />
• Precast piles using ordinary reinforcement are designed to resist bending stresses during<br />
picking up & transporting to the site & bending moments from lateral loads and to provide<br />
sufficient resistance to vertical loads and any tension forces developed during driving.<br />
• Prestressed piles are formed by tensioning high strength steel prestress cables, and<br />
casting the concrete about the cable. When the concrete hardens, the prestress cables are<br />
cut, with the tension force in the cables now producing compressive stress in the concrete<br />
pile. It is common to higher-strength concrete (35 to 55 MPa) in prestressed piles because<br />
of the large initial compressive stresses from prestressing. Prestressing the piles, tend to<br />
counteract any tension stresses during either handling or driving.<br />
• Max length: 10 - 15 m for precast, 20 - 30 m for prestressed.<br />
• Optimum length 10 - 12 m for precast. 18 - 25m prestressed.<br />
• Loads for usual conditions 900 for precast. 8500 kN for prestressed Optimum load range:<br />
350 - 3500 kN.
BRİDGE BEAM<br />
Bridge beam is an element that can easily pass through large openings<br />
using high strength (C 40 and higher) concrete and prestressing<br />
technology, which is generally used in highway projects. Prestressed<br />
bridge beams are manufactured in different dimensions and cross<br />
according to the technical specifications of the bridge to be crossed. One<br />
of the advantages of the Prefabricated Bridge Beam is that it can save<br />
time with the passage of wide openings and the short construction<br />
period. Prefabricated reinforced concrete “I” cross section bridge beams<br />
are the indispensable prefabricated elements of bridge/viaduct<br />
construction due to their speed, quality and low cost features.
WATERPROOF CONCRETE<br />
Design and construction of a watertight concrete<br />
structure is a system approach. The water<br />
impermeability of a construction is determined by<br />
fulfilment of the decisive requirements regarding<br />
limitation of water permeability through the<br />
concrete, the joints, installation parts as well as<br />
cracks.<br />
Long lasting, durable watertight constructions are<br />
achieved by application of a well defined,<br />
engineered system. All involved parties have to<br />
closely interact in order to minimize the<br />
probability of mistakes.<br />
Waterproof concrete is normally an impermeable<br />
concrete. To obtain an impermeable concrete, a<br />
suitable particle-size distribution curve must be<br />
generated and the capillary porosity has to be<br />
reduced.<br />
Water absorption of concrete under pressure<br />
measures the maximum water penetration in mm<br />
after a defined time with a<br />
specified pressure.<br />
(72 hours with 5 bar according EN12390-8)
MEASURES TO REDUCE THE CAPILLARY POROSITY ARE<br />
AS FOLLOWS<br />
Reduction of w/b-ratio<br />
Pore blocker to further reduce the water transport<br />
Shrinkage reduction (dry and plastic) to minimize crack formation<br />
Additional sealing of the voids with pozzolanic reactive material<br />
The concrete curing process is the final parameter affecting the<br />
water resistance<br />
Concrete Composition<br />
AGGREGATE<br />
Well graded particle-size distribution curve<br />
Fines content of the aggregate kept low<br />
Adjustment to the binder content is usually necessary to<br />
obtain a satisfactory fines content.<br />
CEMENT<br />
Conformity with the minimum cement content according to<br />
EN 206 Minimize paste volume as for the recommended<br />
application<br />
ADDITIONS<br />
Use of pozzolanic or latent hydraulic additions<br />
WATER CONTENT (W/B- RATIO)<br />
Low w/b-ratio to reduce the capillary porosity<br />
PLACING<br />
A plastic to soft concrete is recommended to produce<br />
waterproof concrete,<br />
Careful and correct compaction of the concrete is important.
CURING<br />
Immediate and thorough curing is essential<br />
Impermeability of concrete against water is determined by the impermeability of<br />
the binder matrix, i.e. capillary porosity. Decisive factors for the capillary<br />
porosity are the w/b-ratio as well as the content and type of pozzolanic or latent<br />
hydraulic materials. A powerful superplasticizer is used to lower the w/b-ratio.<br />
This in turn decreases the volume of capillary pores within the concrete matrix,<br />
while lending the concrete high workability. These pores are the potential<br />
migratory paths for water through the concrete. With application of water<br />
resisting admixture the calcium in the cement paste produce a hydrophobic layer<br />
within the capillary pores. This consequently blocks the pores and provides<br />
effective protection even at 10 bar (100 meters head of water). The concrete<br />
should be placed, compacted and cured in accordance with good concrete<br />
practice. The correct system for jointing (movement joints, construction joints) is<br />
the key to achieving a watertight structure. Concrete pour sequences and bay<br />
sizes need to be considered in order to reduce the risk of plastic shrinkage<br />
cracking. As a guide, an aspect ratio not exceeding 3:1 is suggested for wall pours<br />
in particular.<br />
Iberia waterbars are flexible preformed PVC waterstops for the waterproofing of<br />
both movement and construction joints which can be subjected to low and high<br />
water pressure.<br />
Correct design of any joints is essential on the one hand. On the other hand proper and<br />
careful installation of the jointing system is decisive for achieving watertightness of<br />
constructions. If watertight concrete leaks, then most often this is due to poor joint<br />
construction. In addition other details such as tie bar holes and service entries need to be<br />
considered. Depending on the level of protection against water, i.e. outside water pressure<br />
as well as intended utilization of the construction, different joint systems are available.<br />
Non-movement joints are usually sealed using hydrophilic strips which come in various<br />
shapes and sizes and swell on contact with water. Where a structure requires a higher<br />
level of protection, more advanced joint systems are available which may offer a<br />
combination of hydrophilic elements built into a resin injected hose. This provides an<br />
excellent secondary line of defense. Where movement joints are necessary, these can be<br />
sealed using hypalon strips secured internally or externally using special epoxy adhesives,<br />
or traditional PVC water bars. Immersion and permanent water contact. The water<br />
permeability limit for watertightness is defined as 10 g/(m2 x hours) (according to SIA<br />
262/1), where water permeability is smaller than vaporizable volume of water without<br />
pressure over a defined period.
CONCRETE MIX DESIGN ADVICE AND<br />
Components Description Example formula<br />
Aggregates<br />
Cement<br />
Any quality aggregates<br />
possible<br />
Any cement meeting<br />
local standards<br />
All aggregate sizes are possible<br />
350 kg/m3<br />
Powder additives<br />
Fly ash or ground<br />
granulated blast furnace<br />
slag<br />
Sufficient fines content by<br />
adjustment of the binder content<br />
Water content<br />
Fresh water and<br />
recycling water with<br />
requirements regarding<br />
fines content<br />
w/c-ratio according to<br />
standards with regard to<br />
exposure class: < 0.45<br />
Concrete<br />
admixtures<br />
Superplasticizer<br />
Type dependent on<br />
placement and<br />
worability time<br />
Water resisting<br />
Iberia® ViscoCrete® or<br />
IberiaPlast® or<br />
Sikament® : 0.60-1.50%<br />
Iberia® WT : 1.00-2.00%<br />
Installation<br />
requirements<br />
and curing<br />
Curing compound<br />
Curing that starts as<br />
early as possible and is<br />
maintained for a<br />
sufficient period of time<br />
has<br />
significant influence on<br />
plastic and drying<br />
shrinkage<br />
Subsequent curing to ensure high<br />
quality<br />
(compactness) of surfaces<br />
Iberia® Antisol®<br />
Joint sealing<br />
Sealing of movement<br />
joints, construction<br />
joints, penetrations and<br />
construction damage<br />
Iberia®-Waterbars<br />
Iberiadur®-Combiflex®<br />
Iberia® Injectoflex System<br />
IberiaSwell®
Product name Product type Product use<br />
Iberia®<br />
ViscoCrete®<br />
IberiaPlast®<br />
Iberiament®<br />
Superplasticizer<br />
Increased strength<br />
and impermeability<br />
Substantial water<br />
reduction<br />
Reduction in<br />
capillary porosity<br />
Iberia® WT-100<br />
Water resisting<br />
admixture<br />
Reduced water<br />
conductivity and<br />
improved water<br />
impermeability<br />
Iberia® WT-200<br />
Water resisting<br />
and crystalline<br />
waterproofing<br />
concrete<br />
admixture<br />
Reduced water<br />
conductivity and<br />
improved water<br />
impermeability<br />
Enhances the selfhealing<br />
properties of<br />
the concrete<br />
Iberia®<br />
Antisol®<br />
Curing agent<br />
Protection from<br />
premature drying
23 TYPES of CONCRETE and THEIR APPLICATION<br />
Different types of concrete are produced based on the<br />
constituent material, mix design, the method of<br />
construction, area of application, form of hydration<br />
reaction. Details of these various types of concrete, their<br />
1. Normal Strength Concrete<br />
The concrete that is obtained by mixing<br />
the basic ingredients cement, water and<br />
aggregate will give us normal strength<br />
concrete. The strength of these type of<br />
concrete will vary from 10 MPa to<br />
40MPa. The normal strength concrete<br />
has an initial setting time of 30 to 90<br />
minutes that is dependent on the cement<br />
properties and the weather conditions of<br />
the construction site.<br />
2. Plain Concrete<br />
The plain concrete will have no<br />
reinforcement in it. The main<br />
constituents are the cement, aggregates,<br />
and water. Most commonly used mix<br />
design is 1:2:4 which is the normal mix<br />
design.<br />
The density of the plain concrete will<br />
vary between 2200 and 2500 Kg/meter<br />
cube. The compressive strength is 200<br />
to 500 kg/cm 2 .<br />
These types of concrete are mainly used<br />
in the construction of the pavements and<br />
the buildings, especially in areas where<br />
there is less demand of high tensile<br />
strength. The durability given by these type of concrete is satisfactory to high<br />
extent.
3. Reinforced Concrete<br />
The reinforced cement concrete is defined as the concrete to<br />
which reinforcement is introduced to bear the tensile strength.<br />
Plain concrete is weak in tension and good in compression.<br />
Hence the placement of reinforcement will take up the<br />
responsibility of bearing the tensile stresses. R.C.C works with<br />
the combined action of the plain concrete and the<br />
reinforcement.<br />
The steel reinforcement used in the concrete can be in the form<br />
of rods, bars or in the form of meshes. Now fibers are also<br />
developed as reinforcement.<br />
Fiber reinforced concrete are concrete that use fibers (steel<br />
fibers) as reinforcement for the concrete. Use of meshes in<br />
concrete will give ferrocement.<br />
Whatever be the type of reinforcement used in concrete, it is<br />
very necessary to ensure proper bond between the concrete<br />
and the reinforcement. This bond will control the strength and<br />
the durability factors of the concrete.
4. Prestressed Concrete<br />
Most of the mega concrete projects are carried out through<br />
prestressed concrete units. This is a special technique in which<br />
the bars or the tendons used in the concrete is stressed before<br />
the actual service load application.<br />
During the mixing and the placing of the concrete, these<br />
tensioned bars placed firmly and held from each end of the<br />
structural unit. Once the concrete sets and harden, the<br />
structural unit will be put in compression.<br />
This phenomenon of prestressing will make the lower section of<br />
the concrete member to be stronger against the tension.<br />
The process of prestressing will require heavy equipment and<br />
labor skill (jacks and equipment for tensioning). Hence the<br />
prestressing units are made at site and assembled at site.<br />
These are used in the application of bridges, heavy loaded<br />
structures, and roof with longer spans.<br />
5. Precast Concrete<br />
Various structural elements can be made and cast in the factory<br />
as per the specifications and bought to the site at the time of<br />
assembly. Such concrete units are called as the precast<br />
concrete.The examples of precast concrete units are concrete<br />
blocks, the staircase units, precast walls and poles, concrete<br />
lintels and many other elements.<br />
These units have the advantage of acquiring speedy<br />
construction as only assemblage is necessary. As the<br />
manufacturing is done at site, quality is assured. The only<br />
precaution taken is for their transportation.
6. Lightweight Concrete<br />
Concrete that have a density lesser than 1920kg/m 3 will be<br />
categorized as lightweight concrete. The use of lightweight<br />
aggregates in concrete design will give us lightweight<br />
aggregates.<br />
Aggregates are the important element that contributes to the<br />
density of the concrete. The examples of light weight<br />
aggregates are the pumice, perlites, and scoria.The light weight<br />
concrete is applied for the protection of the steel structures and<br />
are also used for the construction of the long span bridge<br />
decks. These are also used for the construction of the building<br />
blocks.<br />
7. High-Density Concrete<br />
The concretes that have densities ranging between 3000 to<br />
4000 kg/m 3 can be called as the heavyweight concrete. Here<br />
heavy weight aggregates are used.<br />
The crushed rocks are used as the coarse aggregates. The<br />
most commonly used heavy weight aggregates is Barytes.<br />
These types of aggregates are most commonly used in the<br />
construction of atomic power plants and for similar projects. The<br />
heavy weight aggregate will help the structure to resist all<br />
possible type of radiations.<br />
8. Air Entrained Concrete<br />
These are concrete types into which air is intentionally<br />
entrained for an amount of 3 to 6% of the concrete. The air<br />
entrainment in the concrete is achieved by the addition of foams<br />
or gas – foaming agents. Some examples of air entraining<br />
agents are resins, alcohols, and fatty acids.
9. Ready Mix Concrete<br />
The concrete that mix and bathed in a central mixing plant is<br />
called as ready-mix concrete. The mixed concrete is brought to<br />
the site with the help of a truck-mounted transit mixer. This once<br />
reached in the site can be used directly without any further<br />
treatment.<br />
The ready-mix concrete is very precise and specialty concrete<br />
can be developed based on the specification with utmost<br />
quality.<br />
The manufacture of these concrete will require a centralized<br />
mixing plant. These plants will be located at an adjustable<br />
distance from the construction site. If the transportation is too<br />
long then it will result in setting of concrete. Such issues of time<br />
delay are cope up with the use retarding agents that delays the<br />
setting.<br />
10. Polymer Concrete<br />
When compared with the conventional concrete, in polymer<br />
concrete the aggregates will be bound with the polymer instead<br />
of cement. The production of polymer concrete will help in the<br />
reduction of volume of voids in the aggregate. This will hence<br />
reduce the amount of polymer that is necessary to bind the<br />
aggregates used.<br />
Hence the aggregates are graded and mixed accordingly to<br />
achieve minimum voids hence maximum density.<br />
This type of concrete has different categories<br />
Polymer Impregnated Concrete<br />
Polymer cement concrete<br />
Partially Impregnated
The concretes that<br />
The calcium<br />
have strength<br />
hydroxide crystals<br />
greater than<br />
that are the major<br />
40MPa can be<br />
concern product<br />
termed as high<br />
during hydration<br />
strength concrete.<br />
for the strength<br />
This increased<br />
properties is<br />
strength is<br />
reduced by the<br />
achieved by<br />
incorporation of<br />
decreasing the<br />
silica fume.In<br />
water-cement ratio<br />
terms<br />
of<br />
even lower than<br />
performance,<br />
0.35.<br />
11. High-Strength Concrete<br />
the high strength concrete ought to be less performing in terms<br />
of workability which is an issue.<br />
12. High-Performance Concrete<br />
These concretes conform to a particular standard but in no<br />
case, will be limited to strength. It has to be noted that all the<br />
high strength concrete can be high-performance type. But not all<br />
high-performance concrete (HPC) are high strength concrete.<br />
Standards that conform to the high-performance concrete are<br />
enlisted below:<br />
Strength gain in early age<br />
Easy placement of the concrete<br />
Permeability and density factors<br />
Heat of hydration<br />
Long life and durability<br />
Toughness and life term mechanical properties<br />
Environmental concerns
13. Self – Consolidated Concrete<br />
The concrete mix when placed will compact by its own weight is<br />
regarded as self-consolidated concrete. No vibration must be<br />
provided for the same separately.<br />
This mix has a higher workability. The slump value will be<br />
between 650 and 750.<br />
This concrete due to its higher workability is also called as<br />
flowing concrete. The areas where there is thick reinforcement,<br />
self – consolidating concrete works best.<br />
14. Shotcrete Concrete<br />
Here the concrete type differs in the way it is applied<br />
on the area to be cast. The concrete is shot into the<br />
frame or the prepared structural formwork with the help<br />
of a nozzle. As the shooting is carried out in a higher<br />
air pressure, the placing and the compaction process<br />
will be occurring at the same time.<br />
15. Pervious Concrete<br />
Pervious or permeable concrete are concrete that are designed<br />
such a way that it allows the water to pass through it. These<br />
types of concrete will have 15 to 20% voids of the volume of the<br />
concrete when they are designed.<br />
The pervious concrete is created by unique mixing process,<br />
performance, application methods etc. These are used in the<br />
construction of pavements and driveways where storm water
16. Vacuum Concrete<br />
Concrete with water content more than required quantity is<br />
poured into the formwork. The excess water is then removed<br />
out with the help of a vacuum pump without waiting for the<br />
concrete to undergo setting.<br />
Hence the concrete structure or the platform will be ready to use<br />
earlier when compared with normal construction technique.<br />
These concretes will attain their 28 days compressive strength<br />
within a period of 10 days and the crushing strength of these<br />
structure is 25 % greater compared with the conventional<br />
concrete types.<br />
17. Pumped Concrete<br />
One of the main property of the concrete used in large mega<br />
construction especially for the high-rise construction is the<br />
conveyance of the concrete to heights. Hence one such<br />
property of concrete to easily pump will result in the design of<br />
pumpable concrete.<br />
The concrete that is used for pumping must be of adequate<br />
workability so that it is easily conveyed through the pipe. The<br />
pipe used will be rigid or a flexible hose that will discharge the<br />
concrete to the desired area.<br />
The concrete used must be fluid in nature with enough fine<br />
material as well as water to fill up the voids. The more the finer<br />
material used, greater will be control achieved on the mix. The<br />
grading of the coarse aggregate used must be continuous in<br />
nature.
18. Stamped Concrete<br />
Stamped concrete is an architectural concrete where realistic<br />
patterns similar to natural stones, granites, and tiles can be<br />
obtained by placing impression of professional stamping pads.<br />
These stamping is carried out on the concrete when it is in its<br />
plastic condition.<br />
Different coloring stains and texture work will finally give a finish<br />
that is very similar to costlier natural stones. A high aesthetic<br />
look can be obtained from a stamped finish economically. This<br />
is used in the construction of driveways, interior floors, and<br />
patios.<br />
19. Limecrete<br />
This is a concrete type in which the cement is replaced by lime.<br />
The main application of this product is in floors, domes as well<br />
as vaults. These unlike cements have many environmental and<br />
health benefits. These products are renewable and easily<br />
cleaned.<br />
20. Asphalt Concrete<br />
Asphalt concrete is a composite material, mixture of aggregates<br />
and asphalts commonly used to surface roads, parking lots,<br />
airports, as well as the core of embankment dams. Asphalt<br />
concrete is also called as asphalt, blacktop or pavement in<br />
North America, and tarmac or bitumen macadam or rolled<br />
asphalt in the United Kingdom and the Republic of Ireland.<br />
21. Roller Compacted Concrete<br />
These are concrete that is placed and compacted with the help<br />
of earth moving equipment like heavy rollers. This concrete is<br />
mainly employed in excavation and filling needs.<br />
These concretes have cement content in lesser amount and<br />
filled for the area necessary. After compaction, these concretes<br />
provide high density and finally cures into a strong monolithic<br />
block.
22.Rapid Strength Concrete<br />
As the name implies these concretes will acquire strength with<br />
few hours after its manufacture. Hence the formwork removal is<br />
made easy and hence the building construction is covered<br />
fastly. These have a wide spread application in the road repairs<br />
as they can be reused after few hours.<br />
23. Glass Concrete<br />
The recycled glass can be used as aggregates in concrete.<br />
Thus, we get a concrete of modern times, the glass concrete.<br />
This concrete will increase the aesthetic appeal of the concrete.<br />
They also provide long-term strength and better thermal<br />
insulation also.