The objective of the current study is to develop lightweight concrete by replacement of pumice stone for natural aggregate for M25 grade, with pumice stone ranging proportion from 0-27.5% at 5% intervals.Lalitha VarikuppalaG.V.V. Satyanarayana...
Mix Proportion By weight = 1: 2.48: 3.31 –Aggregates should be used in saturated surface dry condition. If otherwise, when computing the requirement of mixing water, allowance shall be made for the free (surface) moisture contributed by the fine and coarse aggregates. On the other hand,...
Volume of C.A. = 0.7209 – 0.2379 = 0.4830 m3 Therefore weight of F.A. = 0.2379 X 2.61 X 1000 = 620.919 kg/ m3 Say weight of F.A. = 621 kg/ m3 Therefore weight of C.A. = 0.4830 X 2.655 X 1000 = 1282.365 kg/ m3 Say weight of C.A. = 1284 kg/ m3 Considering 20 mm: ...
Keywords: self-compacting steel fiber reinforced concrete (SC-SFRC); mix proportion; fiber factor; water-to-binder ratio (w/b); cubic compressive strength; splitting tensile strength; calculation model 1. Introduction Self-compacting steel fiber reinforced concrete (SC-SFRC) is a type of high ...
However, some studies suggest that their use is not necessarily inauspicious and that satisfactory results (similar to those obtained with fine natural aggregates) are feasible in concrete which contains a proportion of this type of aggregate [25,26,28]. Thus, the use of RCA for actual ...