Abstract
The paper highlight characteristics of no fine concrete (NFC) by evaluating and interpreting the research work undertaken by research scholars around world in past. It explains the approach for better performances. It helps to understand and identify the difference between knowledge and actual performance on ground which stops it from wide and acceptable application throughout the globe. A comprehensive investigation of proportioning of no fine Concrete has been discussed. Identification of relationship between mechanical properties with its design and pore structure of NFC will help us in studying ways of its better utilization. The specific reference has been made for India to understand level of research & development in laboratories and status of different applications at different levels.
Highlights
No fine concrete (NFC) is composed of large aggregates which allow water to infiltrate into ground from surface
Kuo et al [27] reported that the Washed municipal solid waste incinerator bottom ash (MSWIBA) of maximum size 12.5 mm used as a replacement of NA does not cause any significant difference in connected porosities, compressive strength and permeability coefficient
Kevern et al [107] found the better abrasion with surface curpp. 23 ing compound but the best resistance against abrasion was obtained with soya bean oil as curing compound
Summary
No fine concrete (NFC) is composed of large aggregates which allow water to infiltrate into ground from surface. Considerable volume of rain water flow on impervious roadway, parkways and street roads is not absorbed by soil. Such waste of water disturbs the natural balance of ecosystem and results in frequent floods, thinning of ground water table and pollution of rivers. The traditional concrete should be converted to porous or NFC to the extent possible Such NFCs function as natural filters by absorbing pollutant loads and stopping them from flowing into water channels. NFC has low unit weight compared to normal concrete It is unique in terms of porosity and cement matrix is the dominating factor to provide strength [1].
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