Page 29 - CONCRETE MATERIALS AND MIXTURE

1.1.3.1 Behavior of water in concrete

mixture

• Effect impurities may lead to:

a. Interfere the setting time of cement

b. Adverse effect to the strength of concrete

c. Staining in concrete surface

d. Corrosion to the reinforcement of the steel reinforced
concrete

• Do not used water that:

a. Have excessive impurities

b. Contain acid

c. Contain algae

d. High alkaline

• Use of sea water may lead to efflorescence and cause

problems with decorative finishes.