• K.YUGANDHARA REDDY
• SK.RASHID
• V.M.V.SAI KRISHNA

Fly ash cement steel fibers (FaC-f) is the product name derived from a cementitious mixture composed of Fly ash (Fa), Cement(C) and steel fibers(F). It is a low-cost and environmental-friendly material. FaC-F in certain proportions, as a building material is an outcome of innovation. Fly ash, cement, Fibers (FaC-F) hollow blocks are one of the best substitutes for conventional burnt clay hollow bricks or concrete hollow blocks in construction industry. FaC -F hollow blocks are light in weight and being hollow, impart thermal insulation to the buildings. In this paper, a study based on the results of an experimental investigation on FaC-f hollow blocks is presented. The compressive strength, water absorption and weight of FaC-f hollow blocks were determined. The durability of these blocks in terms of gains in compressive strength. It is observed that FaC-F hollow blocks have sufficient strength for their use in general building construction. The properties of FaC-F masonry hollow blocks were determined for different parameters. The experimental results reveal that the FaC-F hollow blocks are suitable to be used for the construction of masonry structures. The variation in density of fly ash hollow concrete blocks for different mixes was not large. On the basis of present experimental work, fly ash concrete hollow blocks are proposed for the masonry work in buildings. Fly ash concrete blocks are lighter in weight, less porous resulting in better resistance to chemical attack - and have better fire resistance. Hollow fly ash concrete blocks having nearly the same compressive strength as ordinary concrete grade A, hollow blocks were found to be cheaper.

Durability, environment, fly ash, steel fibers, waste management, thermal insulation, Hollow Block compressive strength, water absorption.

"PROPERTIES OF FAC-F HALLOW MASONRY BLOCKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.885-891, July-2018, Available :http://www.jetir.org/papers/JETIRC006156.pdf

"PROPERTIES OF FAC-F HALLOW MASONRY BLOCKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp885-891, July-2018, Available at : http://www.jetir.org/papers/JETIRC006156.pdf