Partial cement Replaceable Material

An experimental program is conducted to develop new kinds of pozzolana from
other agricultural wastes apart from rice husk and rice straw. The study investigated the use of coconut husk, corn cob and peanut shell ash as cement replacement materials. A series of tests were performed to determine the chemical composition of coconut husk ash, corn -cob ash and peanut shell ash which are referred to as CHA, CCA and PSA respectively.

The mechanical properties of paste and mortar containing different percentages of ash replacement were investigated. Experimental results revealed that coconut husk ash and corn cob ash cannot be utilized as pozzolona while peanut shell ash can be classified as Class ‘C’ pozzolona according to ASTM Standards. Corn cob ash mortars possessed higher compressive strength. Among the four types of mortars tested for chemical attack, PSA mortars showed higher resistance against acidic attack.

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http://www.ziddu.com/download/19766468/Partialcementreplaceablematerials2.pdf.html

Construction of Pre-fabricated Building Components Using Flyash

Abstract: In today’s world, where speed and convenience play a big part in influencing the use of any product, the age of prefabricated housing products seems to have finally arrived. The usefulness of these products help significantly in speeding up construction by offering ready-to-install building elements such as blocks, joist beams, roof blocks and panels is being widely recognised in the industry.

Pre-fabricated components are becoming immensely popular due to the several attractive advantages that they offer, such as off-site fabrication, which allows reduction in construction time and this function helps greatly in managing the schedule of the construction project. Due to their low density, the prefabricated components impose a relatively lighter load on the structure and superior quality can also be achieved as these components are manufactured under a strictly controlled environment.

In recent times few innovations in the field of materials are expected to make these products even more popular, user friendly and eco friendly. The present paper discusses on the manufacturing of prefabricated building components using fly ash, and explains regarding fabrication, centring, placing, applications and the advantages over the monolithic construction. This paper aims to popularize the promotion of prefabrication building methodologies for low cost housing by highlighting the different prefabrication components and techniques, and the economical advantages achieved by its adoption.

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http://www.ziddu.com/download/19563485/CONSTRUCTIONOFPREFABRICATEDBUILDING.pdf.html