Special ultrathin-layer masonry mortar for sintered building blocks made of regenerated fine powder containing red bricks

Abstract

The invention aims to provide special ultrathin-layer masonry mortar for sintered building blocks made of regenerated fine powder containing red bricks. The special ultrathin-layer masonry mortar comprises the following components in parts by weight: 250-430 parts of cement, 195-375 parts of regenerated fine powder containing red bricks, 300-525 parts of fine sand, 6-10 parts of redispersible latex powder, 1.5-2 parts of hydroxypropyl methyl cellulose ether, 0.2-1.05 parts of water reducing agent and 0.3-0.5 part of wood fiber. According to the ultrathin-layer masonry mortar, all components utilize red brick-containing recycled fine powder, sorting and powder removal are not needed in the processing process of red brick-containing construction waste, the production process is low-carbon and environment-friendly, the cost is low, and the utilization problem of the sand powder mixture which is most difficult to utilize in the construction waste recycling process is successfully solved. The regenerated fine powder is adopted to partially replace natural fine sand, the mortar joint thickness of the obtained ultrathin-layer masonry mortar is not larger than 2 mm, and the ultrathin-layermasonry mortar has the advantages of being high in activity, high in water-retaining property, good in construction performance, capable of insulating heat and saving energy, environmentally friendlyand the like.

Description

technical field [0001] The invention relates to a special ultra-thin layer masonry mortar for sintered blocks made of regenerated fine powder containing red bricks, and belongs to the technical field of building materials. Background technique [0002] As the main technical material of various infrastructures and industrial and civil buildings, mortar is widely used in various construction projects due to its good strength, durability and low price. As an important raw material for mortar - natural sand, a large number of random digging over the years has led to many problems such as the drop of river water level and the destruction of the ecological environment. also continued to rise. Therefore, the ready-mixed mortar produced by using recycled fine aggregate and fine powder instead of natural sand will be quickly applied and promoted. [0003] Self-insulating block is a new type of wall material developed rapidly in recent years, which has the advantages of sound insula...

AI Technical Summary

Problems solved by technology

However, when ordinary mortar is used for traditional masonry construction, the thickness of the mortar joints can reach 20mm. Larger mortar joints will transfer heat at both ends of the wall, which seriously reduces the thermal insulation effect of the wall and causes waste of raw materials.

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