Construction Process and Precautions for Thermal Insulation Mortar
Release Time:
2015-09-01
Source:
Construction Process and Precautions for Thermal Insulation Mortar
Thermal insulation mortar It is a pre-mixed dry mortar made by using various lightweight aggregates as the aggregate, cement as the binder, and adding certain modifying additives, which are then thoroughly mixed at the manufacturing plant. It is primarily used for thermal insulation of exterior building walls and offers advantages such as ease of construction and excellent durability. Below is a brief introduction to thermal insulation mortar. Some construction procedures and precautions.
1. Before applying thermal insulation mortar, ensure that the building surface is free of dust, oil stains, and other contaminants, as these can compromise the mortar’s adhesion.
2. When the temperature is high or the substrate is relatively dry, significant water absorption may occur; therefore, the substrate must be wetted with water before applying the thermal insulation mortar.
3. After thoroughly mixing it with a dedicated interface agent, apply it to the substrate and trowel it into a 3-mm-thick, serrated profile.
4. The thermal insulation mortar system must be mixed according to the scientifically determined water-to-cement ratio to ensure there are no powder clumps.
5. Apply the thermal insulation mortar by troweling, in accordance with energy-saving objectives;
6. Apply a 2 mm-thick crack-resistant mortar over the thermal insulation mortar;
7. An alkali-resistant mesh fabric shall be applied to the surface of the crack-resistant mortar.
8. The final step is to apply another layer of crack-resistant mortar over the alkali-resistant mesh embedded in the surface of the crack-resistant mortar.
9. After completion of the protective layer, cure for 2–3 days (depending on ambient temperature) before proceeding with the subsequent finish coat construction.
