BRAIN TRAINERS

 

IS 269:1989 – Specification for ordinary Portland cement, 33 grade IS 383:1970 – Specification for coarse and fine aggregates from natural sources for concrete IS 455:1989 Specification for Portland slag cement IS 456:2000 Code of practice for plain and reinforced concrete IS 457:1957 Code of practice for general construction of plain and reinforced concrete for dams and other massive structures IS 516:1959 Method of test for strength of concrete IS 650:1991 Specification for standard sand for testing of cement IS 1199:1959 Methods of sampling and analysis of concrete IS 1343:1980 Code of practice for prestressed concrete IS 1344:1981 Specification for calcined clay pozzolana IS 1489(Part 1):1991 Specification for Portland pozzolana cement Part 1 Flyash based IS 1489(Part 2):1991 Specification for Portland-pozzolana cement: Part 2 Calcined clay based IS 1727:1967 Methods of test for pozzolanic materials IS 2386(Part 1):1963 Methods of test for aggre...

BRICK MASONRY                           Construction of brick units which are bonded together with mortar CHARACTERISTICS OF BRICK     Bricks should have perfect edges, copper colored, free from crack    Clear ringing sound when struck    Hard, average weight should be 3-3.5 kg    It should not break when fall from 1 m height    Low thermal conductivity & Should be sound proof    The crushing strength of brick must be 3.5 N/mm 2 TERMS USED Stretchers : A brick laid with its long, narrow side exposed Header : A brick laid with its short side exposed. Three-quarter bat – stretching: A brick cut to three-quarters of its length and laid with its one narrow side exposed. Three-quarter bat – heading: A brick cut to three-quarters of its length,      and laid with its short side exposed. Half bat : A brick cut in half...