Building Materials, Third Edition
QHP f 2w Describe briefly the following: (a) Vee-Bee Test (b) Factors affecting durability of concrete (c) Rheo ...
g QHQ yftigsi2i2 isyx The approximate ratio between the strengths of cement concrete at 7 days and 28 days is ( ...
QHR f 2w For a give environment, the most significant factor that influences the total shrinkage of concrete is (a ...
g QHS (c) the setting time of cement and the amount of mixing water than on atmospheric temperature (d) the amount of mix ...
QHT f 2w A concrete cylinder of size 15 mm diameter and 300 mm long is tested for split tensile strength of concre ...
II g2w 2h s 22w 2h s 222w e 2g III sxyh gsy ...
QHV f2w (i) complies with the specifications of structural strength laid down, which is usually stated in terms o ...
g 2w2h QHW design mix should have a characteristic strength of 20 N/mm^2 , M 25 mix shall have a characteristic str ...
QIH f2w strength should be thoroughly mixed and placed with as little ramming as possible to produce a porous con ...
g 2w2h QII p 2II I g 2 22U22 2 2 22PV22 T2 2 E 2 ...
QIP f2w Mix design must be planned well in advance otherwise considerable time will be lost if the 28-days streng ...
g 2w2h QIQ IS:12269–1987 (53 grade OPC), IS:12230–1988 (Sulphate resisting cement), IS:1489-1976 (Portland Puzzolan ...
QIR f2w " 2II Q w& 2 Eg 222w 2g 2g 22h"2g 2 ...
g 2w2h QIS The relative proportions of coarse to fine aggregate, and their distribution into different size fractio ...
QIT f2w coarse aggregate are used a finer combined grading should be preferred, while for richer mixes a coarser ...
g 2w2h QIU against poor compaction. For instance using irregular gravel as coarse aggregate of 20 mm maximum size, ...
QIV f2w The recommendations for combined grading of coarse aggregates for use in concrete of good workability are ...
g 2w2h QIW Chlorides for RC work 500 mg/l for plain concrete 2,000 mg/l Sulphates 400 mg/l Inorganic matter 3,000 m ...
QPH f2w 2h The standard deviation of a given grade of concrete can be calculated from the results ...
g 2w2h QPI p 2II T 2h 22g 2+ 2 This approach is contrary to the recom ...
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