Construction materials & technologies Question 1 Discuss the effects of the following cement extenders on concrete: 1.1.

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Construction Materials Technologies Question 1 Discuss The Effects Of The Following Cement Extenders On Concrete 1 1 1 (45.35 KiB) Viewed 14 times

Construction materials & technologies Question 1 Discuss the effects of the following cement extenders on concrete: 1.1.Ground granulated blast furnace slag (GGBS) 1.2.Fly ash (FA) (3) 1.3.Condensed silica fume (CSF) (3) Question 2 A mini slab is to be cast from a hand compacted concrete made from 19 mm stone with a compacted bulk density of 1765 kg/m³ and sand with a fine modulus of 2.8. Calculate the stone content of the mix. (5) Question 3 3.1.Calculate the particle relative density of a blend of two aggregates with different densities. Aggregate-X has a particle relative density of 2.88 whilst Aggregate-Y has a particle relative density of 4.20. The blend must have equal proportions of each aggregate. (5) 3.2.Use any alternative method to calculate the same density of the blend described in 3.1. above, and comment on the values obtained. (2) Question 4 4.1.State briefly, six factors that the contractor must be consider regarding the cost of concrete batched on site. (1/2 mark x 6=3) 4.2.Discuss the considerations for keeping falsework safe. (1/2 mark x 4 = 2) END TOTAL = 25 MARKS