1. This standard specifies the classification, marking, requirements, test methods, inspection rules, packaging, marking and storage of concrete interface treatment agents.
2. This standard is applicable to the cement-based interface treatment agent for improving the bonding performance between the mortar layer and the base surface of cement concrete, aerated concrete and other materials. For the interface between new and old concrete, the surface treatment agent for waste ceramic tiles and mosaics can also be implemented with reference to this standard.
The use of concrete interface agent:
1, according to the water-cement ratio of 1: 3 or so (according to the air temperature), adjust the interfacial agent into a uniform thick paste. When preparing, the interfacial agent should be fully stirred and allowed to stand for 5 ~ 10 minutes before use. When placed, if the interfacial agent is a little thick, you can add water and stir it evenly before using it. The mixed interfacial agent should be used up within 1 ~ 4 hours according to the temperature.
2, the mixed interface agent with plaster or spray wool (pulp) method. When daubing, directly daub the interface agent on the base surface with plastering tool, and the thickness is about1.5 ~ 3 mm. After 5 ~ 20 minutes, you can find flat bottom ash with powdered cement mortar. When spraying wool, spray the mixed paste interface agent evenly on the base surface with a diameter of 5mm, and the thickness is about 2 ~ 3 mm After spraying the interface agent for 24 hours, the wall surface can be leveled, plastered and leveled.
3. The reference dosage per square meter is about 2 ~ 2.5 kg.
Refer to the above? Baidu encyclopedia-concrete interface treatment agent