Short notes on :
State the effect of shape and size of aggregate on strength of concrete.
30 June, 2022Design concrete mixes of M30 to suit the following data per IS:10262-1982 :
Characteristic cube strength = M-30, type of cement - ordinary Portland, fine aggregate natural river sand conforming to grading zone II of table-4 of IS:383-1970 coarse aggregate-crushed (angular) coarse aggregate of 20 mm maximum size conforming to IS:383 code requirements, specific gravities of cement, sand and coarse aggregate are 3·14, 2·63 and 2·61 respectively. Type of exposure - mild, Degree of quality control - very good. Degree of workability = 0·08. use IS:10262-1982.
29 June, 2022How do water-cement ratio and workability affect the strength of concrete? What are the factors promoting shrinkage?
29 June, 2022Describe about the Rebound Hammer test method and the ultrasonic pulse testing method for determining the strength of concrete.
29 June, 2022What are the initial and final setting times of cement ? How are they experimentally determined ?
29 June, 2022The Oxide composition of O.P.C. is as follows :
CaO (50%), SiO2 (15%), Al2O3 (5%), Fe2O3 (3%), SO3 (2%)
Find the percentage of C3S and C3A.
29 June, 2022
