Abstracts Book - IMRC 2018

• SE2-P058
ANALYSIS OF COMPACTNESS IN MORTAR BASE CEMENT,
MUCILAGE OF NOPAL AS SUBSTITUTE OF FLUID MIXING
Fidel Bautista Leon 1 , Wilfrido Martinez Molina 1 , Hugo Luis Chávez García 1 , Elia Mercedes
Alonso Guzman 1 , Cindy Lara Gomez 1 , Marco Antonio Mondragon Ornelas 1 , Noel Diaz
Gonzalez 1 , Marcos Ariel Villanueva Guzman 2
1 Universidad Michoacana de San Nicolás de Hidalgo, Civil Engineering Faculty, Mexico.
2 Universidad Michoacana de San Nicolás de Hidalgo, Maestria en Infraestructura del
Transporte en la Rama de las Vias Terrestres, F.I.C., Mexico.
When the mortars have high porosity also contain high permeability 1 . Intends
to compare some parameters as: Capillary absorption coefficient (k), Capillary
absorption (S), Resistance to water penetration (m) and (Ô•e) Effective porosity
in mortar base cement, using "mucilage of cactus opuntia (prickly pear)" as
kneading liquid. With these parameters will determine the ability of mortars to
allow the introduction of water or other agents 2 . The mortars were developed:
Control, MN 1:2, MN 1:3. Control is the witness, using a w/b ratio: 0.68, without
thinning; MN is mucilage of nopal, the first was obtained by cooking 1 kg of
cactus and 2 L of water, the second was 1 kg of cactus and 3 L of water, was
thinning of 1% and 0.3% in each mucilage respectively. Bank arena of "Joyitas",
located 15 km to the Northwest of the city of Morelia was used in three mortars,
used cement portland composite and with resistance to sulfates (CPC-30R RS).
Slipped prismatic specimens 3 , 5 cm of edge to the ages of 90 and 180 days.
Materials with porosity less than 10% are of good quality and compactness,
porosity between 10% and 15% are of moderate quality, and if you have porosity
over 15% indicates that it is an inadequate durability material 4 . According to the
classification above, at the age of 90 days, were presented as materials of good
quality, but 180 days mortar MN 1:2 was as material of moderate quality.
Mixtures Control and MN 1:3 had very similar values in the two ages of test.
References:
Howland, J., & Martín, A. (2013). Study about the capillary absorption and the
sorptivity of concretes. Meteriales de Construcción, vol. 63, 515 - 527.
González Castro, E. (2016). Mezcla de Concreto Hidráulico con Ceniza de Bagazo
de Caña como Sustituto del Cemento: Evaluación de las Propiedades Físico-
Mecánicas y la Durabilidad. Morelia, Michoacán: Facultad de Ingeniería Civil,
UMSNH.