Formula design of novel cement-based insulation dry powder

Abstract

The invention discloses formula design of a novel cement-based insulation dry powder and belongs to the technical field of building energy-saving insulation materials. The formula design comprises the following components: (1) cement; (2) aggregates; (3) a calcification agent; (4) an insulation filling material and (5) a thickening agent. According to the invention, a special formula design is adopted, designed components are simple, the production process is simple, low-cost cement is used as a base material, diatomite and bentonite which have the advantages of rich yield, low cost and good insulation effect are used as the aggregates, and an inorganic insulation filling material is added in the formula, thus the novel cement-based insulation dry powder is environmentally-friendly, efficient and energy-efficient; and after being mixed with water, the formula product forms high-quality insulation mortar and exerts bonding, padding, protection and decoration effects in an insulation thin layer form in the building industry, and even can be used as inner and outer wall putty, colorful decorative dry powder, powder paint and the like, and the use of building insulation material can be reduced due to the excellent insulation property, thereby reducing the construction cost. The density of the dry powder is 1.7-1.8g/cm<3>, the impact strength of the dry powder after solidification reaches 12MPa, the low-temperature conductive coefficient of the dry powder is 0.035w/(m.k), and the high-temperature conductive coefficient of the dry powder is 0.075w/(m.k).

Description

technical field [0001] The invention relates to a formula design of a novel cement-based thermal insulation dry powder, which belongs to the technical field of building energy-saving thermal insulation materials. Background technique [0002] Dry powder mortar refers to a granular or powdery mixture of aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers) that have been dried and screened in a certain proportion. , transported to the construction site in bags or in bulk, and can be used directly after mixing with water. Also known as mortar dry powder, dry mix, dry mix powder, some construction adhesives also belong to this category. Dry powder mortar plays the role of bonding, padding, protection and decoration in thin layers in the construction industry, and is widely used in construction and decoration engineering. [0003] Traditional dry powder is generally used for bonding and decoration, and its function...

AI Technical Summary

Problems solved by technology

Over a thousand types of dry powder mortars have been developed abroad, but in my country there are less than a hundred types. Therefore, the phenomen