Self-Compacting Concrete Literature Review

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2.2 LITERATURE REVIEW Okamura H et al. (2003) "Self-Compacting Concrete" provides general guide lines for the selfcompacting concrete. The method to achieve self compacting behavior by following ways (1)Limited aggregate content (2) Low water-powder ratio (3) Use of superplasticizer. Also a rational mix design method was developed .The various test to check the selfcompacting behaviour of the fresh concrete are as slump flow test, V Funnel test, L Box test, U Box test etc. Also a rational method of mix design was proposed with fixing coarse aggregate at 50% of total volume , fine aggregate percentage to 40% ,maintaining the water powder ratio by volume to to 0.9 to 1.10 and adjusting the water content and superplasticizer dosage. The super plasticizer used shall have high dispersive effect for lower water powder ratio, and also it should maintain the dispersive effect for longer durations. A segregation inhibiting agent can be used so as to prevent effects of changes in moisture content of fine aggregates in self compacting behaviour. Kavitha O R, et al. (2015) , “Fresh, micro- and macrolevel studies of metakaolin blended…show more content…
(1997) "Durability of Glass Fiber Reinforced Cement Composites " investigates the hot-water durability of glass fiber reinforced cement composites. The different matrices selected were (a) cement; (b) cement + 25% metakaolin; and (c) cement + 25% silica fume. Glass fiber addition was 5% of weight of the composite. Specimens after normal curing of 28 days were immersed in a hot water bath at 50°C for up to 84 days and then tested in flexure and tension. The addition of glass fibers to the cement matrix significantly improves the flexural and tensile behavior of cement matrix. With aging, the GFRC composite that contained metakaolin showed only a relatively minor drop in flexural strength, strain, modulus of elasticity, and toughness, whereas addition of silica fume did not cause any improvement on

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