UNIT I
CEMENT : PORTLAND CEMENT – CHEMICAL COMPOSITION
– HYDRATION OF CEMENT – STRUCTURE OF HYDRATE
CEMENT – TEST ON PHYSICAL PROPERTIES – DIFFERENT
GRADES OF CEMENT. ADMIXTURES : TYPES OF
ADMIXTURES – MINERAL AND CHEMICAL ADMIXTURES –
PROPERTIES – DOSAGES – EFFECTS – USAGE.
AGGREGATES: CLASSIFICATION OF AGGREGATE –
PARTICLE SHAPE & TEXTURE – BOND,STRENGTH & OTHER
MECHANICAL PROPERTIES OF AGGREGATE – SPECIFIC
GRAVITY, BULK DENSITY, POROSITY, ADSORPTION &
MOISTURE CONTENT OF AGGREGATE – BULKING OF
SAND – DELETERIOUS SUBSTANCE IN AGGREGATE –
SOUNDNESS OF AGGREGATE –
ALKALI AGGREGATE REACTION – THERMAL PROPERTIES –
SIEVE ANALYSIS – FINENESS
MODULUS – GRADING CURVES – GRADING OF FINE &
COARSE AGGREGATES – GAP
GRADED AGGREGATE – MAXIMUM AGGREGATE SIZE.