The paper presents new compositions of lime heat-insulating dry building mixtures, designed specifically for the finishing of aerated concrete, characterised by the presence of a modifying additive based on aluminosilicates and calcium hydrosilicates, as well as highly porous filler – microspheres. The beneficial effect of a modifying additive based on a mixture of aluminosilicates and calcium hydrosilicates with high pozzolanic activity on the structure formation of lime finishing compounds has been established, and is manifest in a decrease in the content of free lime to 28·6%, an increase in plastic strength, and a 2·2 times increase in the softening coefficient. It has been revealed that when using limestone heat-insulating dry construction mixtures of hollow glass microspheres and ash aluminosilicate microspheres, the crack resistance of the resulting coatings increases by reducing shrinkage deformations during the hardening process, increasing the ultimate tensile properties and cohesive strength of the finishing coating, and increasing water resistance by the formation of a composite structure with a closed porosity. Coatings based on the developed dry construction mixture are distinguished by low density and thermal conductivity and high vapour permeability, while possessing a sufficiently high crack resistance and weatherability.

中文翻译：

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开发用于加气混凝土墙饰面的隔热干砂浆混合物

该论文介绍了石灰隔热干式建筑混合物的新成分，专为加气混凝土的整理而设计，其特点是存在基于硅铝酸盐和氢硅酸钙的改性添加剂，以及高度多孔的填料——微球。基于具有高火山灰活性的硅铝酸盐和氢硅酸钙的混合物的改性添加剂对石灰整理化合物的结构形成的有益效果已经确立，并且表现在游离石灰含量降低至 28·6%，塑性强度增加，软化系数增加2·2倍。研究表明，在使用中空玻璃微球和灰铝硅酸盐微球的石灰石隔热干式建筑混合物时，通过减少硬化过程中的收缩变形，提高最终涂层的极限拉伸性能和内聚强度，以及通过形成具有封闭孔隙的复合结构来提高耐水性，从而提高了所得涂层的抗裂性。基于开发的干式建筑混合物的涂料的特点是低密度和导热性以及高蒸汽渗透性，同时具有足够高的抗裂性和耐候性。