回填泡沫混凝土计划(国外英文资料).docVIP

回填泡沫混凝土方案(国外英文资料) Mixing foam concrete 2 Foaming agent VAT a one Foam blowing agent 3 The broom the 2 Clean up 4 A spade the 2 feeding 5 Water pipe Set of 4 The construction of water 6 Feeding tube m 100 feeding 7 Cable tool accessories Set of one Construction with 4.3 site preparation 4.3.1 clean up all kinds of debris around the site to prevent damage to personnel and equipment. 4.3.2 equipment and materials will be set up to ensure that the cement, foaming agent and other products are laid out in order to avoid the waste and pollution of the rainy season. When the equipment is installed and debugged, the equipment can be used for trial production. 4.4 material preparation Choose the strength grade C0.3, dry density A03, and now pour foam concrete. Construction technology for 5. Production technology of foam concrete The production process of 5.1.1 foam concrete includes: foam preparation, foam concrete mixing preparation, pouring molding, curing and testing. The material requirements of foam concrete, the raw materials of foamed concrete mainly include cement and foaming agent. 1) cement: PS32.5 slag Portland cement. project Quality indicators physical performance Setting time Initial coagulation should not be earlier than 45min stability The test of boiling water must be qualified chemical Burn the vector Should not exceed 5% performance magnesia The content of magnesium oxide should not exceed 5% Sulphur trioxide No more than 3.5% 2) foaming agent: the quality of foam is identified by measures such as toughness, foaming multiple and volume of water. The tenacity of a bubble is the characteristic that foam does not break in the air during the period of time. The foaming multiple is a multiple of the foam volume than the foam agents volume. The amount of water that is produced by the foam agent when the foam is damaged. When foam quality meets the following indicators, it can be used to produce foam concrete: The subsidence of the bubble after 1h is not greater