No Fine Concrete
The study found that of the different admixtures tested, polypropylene fibers had the largest impact in improving durability. Including polypropylene fibers in the pervious concrete mix resulted in significant increases in resistance in all three freeze-thaw durability tests. It also resulted in significant increases in abrasion resistance. By bridging the gap between the coarse aggregates, the cellulose fibers bound the pervious concrete mixture with an interwoven matrix of fibers.
This also improved the compressive strength of the pervious concrete. The delayed set modifier resulted in a more fluid mix and large gains in compressive strength at seven and fourteen days and twenty eight days. This admixture may inhibit some of the cement from setting around aggregates and may result in some cement settling to the bottom and forming a less pervious layer. The viscosity modifying admixture created a more workable and easier to mold mix. Its effect on strength and durability were minimum.
Md. A. Alam. Experimental study on properties of no fine concrete. IJIFR. 2015; E10:055p.
SK. Sindhu, ST. Babu. Study and comparison of mechanical properties of pervious concrete and conventional Concrete. IJAR. 2015:1(10):676-681p.
D. Shah. Previous concrete: New era for rural road pavement, IJETT. 2013; 4(8):1-5p
KS Ushane, (Nov 2014) , Investigation of no fines concrete in building blocks. Int J Struct Civil Engg Res.2014; 3(4):1-8p.
N. Ghafoori. Laboratory investigation of compacted no fines concrete for paving materials, J Mater Civil Engg.1995.
AA. Mutter. Improving the mechanical properties of no fine concrete, J Babylon Univ/ Engg Sci. 2013;21.
R. Ponnada. An innovative no fines concrete pavement model,IOSR-JMCE. 2015.
JK. Pitroda. An experimental study on hardened property of pervious concrete, Int Res J Engg Technol. 2014: 2(3).
MS. Shetty. Concrete Technology. New Delhi: S Chand & Company Ltd.
ML. Gambhir. Concrete Technology. New Delhi: Tata McGraw Hill Publishing Company Ltd. 2006.
Indian Standard (IS) For Cement: IS 4031; 1999.
Indian Standard (IS) For Aggregate: IS 2386, Part I; 1963.
Indian Standard (IS) For Water: IS 456; 1978.
Indian Standard (IS) For No Fine Concrete: IS 12727; 1989.
Indian Standard (IS) For Slump Test: IS 1199; 1959.
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