Slag adjusting hydraulic lime mortar for reinforcing and repairing earth construction, and preparation method thereof

Abstract

The invention discloses slag adjusting hydraulic lime mortar for reinforcing and repairing earth construction, and a preparation method thereof, and belongs to the field of building materials, whereinthe raw materials comprise: 15-25 parts of slaked lime, 10-20 parts of slag, 45-65 parts of aggregate, 0.4-1.2 parts of polymer latex powder, 0.03-0.15 part of cellulose ether, and 0.05-0.2 part of the fiber. The preparation method comprises: adding vinyl redispersible latex powder, hydroxyethyl methyl cellulose ether and fiber to a high speed mixer, uniformly stirring, adjusting the rotation speed, adding slaked lime, slag and aggregate, and uniformly mixing to obtain the product. Compared with the cement-based mortar, the obtained slag adjusting hydraulic lime mortar of the present invention can significantly reduce the high energy consumption produced by the utilization of cement, and has excellent compatibility with earth construction matrixes. Compared with the natural hydraulic lime-based mortar, the obtained slag adjusting hydraulic lime mortar of the present invention has the significantly reduced cost, can promote the resource utilization of solid waste, has significant economic benefits and environmental value, and is suitable for large-scale promotion application.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a slag blended hydraulic lime mortar for reinforcement and repair of raw earth buildings and a preparation method thereof. Background technique [0002] Hydraulic lime has both hydraulic and air hardness, moderate strength development, good water resistance, and good compatibility with traditional building materials. It is an ideal inorganic cementitious material for ancient building restoration. Nowadays, people pay more and more attention to the protection of ancient buildings, and the selection of ancient building restoration materials is the key, which highlights the application value of hydraulic lime. At present, natural hydraulic lime is successfully applied to the restoration of ancient buildings, which is obtained by calcining natural limestone with high silica or clay content. However, this kind of limestone raw material has not been found in large quantities in my co...

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Problems solved by technology

However, this kind of limestone raw material has not been found in large quantities in our country, so that the commercial production of natural hydraulic lime has not been realized, and only a small amount of imported products can be used, which limits the application and development of hydraulic lime in the restoration of ancient buildings in our country.

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