TABLE OF CONTENTS - The Professional Green Building Council

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Theme C: Education and Market TransformationTable 1: Figures for Material Acquisition in Pumice Concrete Block ProductionProcessed basic Annual Supplied from Transportation Transportationmaterials consumption* (distance) method/capacity energyCement 30,000 t 65 km Truck / 40 t Diesel fuelIron oxide 84 t 797 km Truck / Vary Diesel fuel~8000 km Ship / Vary Diesel fuelTimber pallet 150,000 pieces 70 km Truck/ 40 t Diesel fuelSteel strip 150 t 797 km Truck / 40 t Diesel fuelPlastic strip 70 t 797 km Truck / 40 t Diesel fuelKraft protection 35 t Vary Vary VaryExtracted Annual Extraction Machine used Energy inputmaterial consumption* processes in processesPumice 300,000 t Excavation Wheel loader Diesel fuelTransportation (~4.5 km) TruckDiesel fuelCleaning / Sorting Sieve ElectricityLoading Wheel loader Diesel fuelTransportation (~0.5 km) TruckDiesel fuelWater - block 95,000 t Pumping Water pump Diesel fuelproduction* Consumption amounts are based on annual production of 30 million blocks having a density of about 600 kg/m 3 .Water is supplied from wells bored at the factory site reaching to 170 m. depthusing diver pumps operated by diesel electric generator. Water is used for cleaningand sorting pumice aggregate, and in the mixture of block in production in additionto sanitary purposes.Pumice is excavated from three different areas; the main quarry is located at thefactory site and the other reserves are 4 and 10 km far from the factory. Pumice isusually found close to the surface and as 4-5 metres thick bands. No extra processlike blasting is required to loosen the pumice deposit.Pumice aggregate preparation for block production is consisted of (i) excavationand loading of pumice, (ii) transportation to cleaning / sorting bunker, (iii) cleaningand sorting of pumice, and (iv) transportation to production bunker processes.644
Theme C: Education and Market TransformationFigure 1: Raw material acquisition processes of pumice concrete blocks.3.2.2. Raw materials acquisition of AAC blocksInner materials used in aerated concrete block production are: sand, cement, lime,gypsum, aluminium powder and water. The other materials associated with blockproduction of the factory are timber pallet and polyethylene wrap for packaging.In the investigated factory all materials other than lime and cement are purchasedfrom outside manufacturers/providers. Lime is provided from company’s in-housedivision located at the same site, and it is directly taken from the lime productionfacility and is stored in block manufacturing silo. Cement is provided from a sistercompany which is also located at the same site. Aluminium powder, as the airvoids producing agent, is used in very small amounts in the mixture. It contains anenormous amount of energy, thus there is the risk of dust explosions and thereforeis classified as dangerous goods. In its production aluminium foil is grinded in theball mills and the flake obtained is filtered and stored in order the powder is to beoxidized. It is shipped from abroad, in this case from Sweden.645
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Funding OrganisationCOMMERCE AND EC
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Ms. S.Y. Shum, Anna, Lecturer, Divi
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以绿色思维创新绿色
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ENHANCING SUSTAINABILITY DELIVERABL
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Theme A: Connecting the Pearl River
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精宜之道 ”。所谓 “
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to use suitable technology. Additio
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Theme B: Creating a livable, health
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Average Credit4.03.83.63.43.2Averag
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Theme C: Education and Market Trans
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