Gypsum-based door and window seam filling and sealing mortar as well as preparation method and application thereof

Abstract

The invention relates to gypsum-based door and window seam filling and sealing mortar as well as a preparation method and an application thereof. The gypsum-based door and window seam filling and sealing mortar is prepared from the following components in parts by weight: 100 parts of waste gypsum, 20-200 parts of active admixture, 0.01-10 parts of water reducing agent, 0.1-50 parts of excitant, 0-10 parts of thickening time control agent, 0-30 parts of binding agent, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of water repellent, 0-5 parts of starch ether, 0-150 parts of powder filler and 0-300 parts of aggregate. Compared with the prior art, the mortar has the advantages of simpleness and convenience in construction, good filling capability, high adhesion capability, good durability, low cost and the like; as the mortar takes chemical gypsum such as desulfurization gypsum and phosphogypsum as main binding materials, a novel application is provided for resource utilization of waste gypsum, not only is material property improved, but also the cost is lowered, and the purposes of sewage treatment and emission reduction are achieved.

Description

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AI Technical Summary

Benefits of technology

In this patented technology, there's an advantage that makes concrete stronger without adding more expensive chemical agents or requiring longer-lasting curative processes compared to previous methods like calcium sulfate hydration method (CSA). Additionally, due to their high strength properties, these compositions have potential applications beyond building foundations such as roadways, tunnels, dams, pipes, etc., making them ideal substitutes for traditional ways of reinforcing structures.

Problems solved by technology

Technological Problem addressed in this patents relates to improves the performance of existing valveless rooms without requiring expensive maintenance and replacements. Current methods involve adding calcium nitrogen hydride to replace traditional silicate bricks, leading to increased greenhouse gases emissions and negative impact upon indoor environments. Additionally, current disposable siding products have limitations like being too rigorous for certain applications where safety concerns exist. There is thus a technical solution called "wetting sealed curtain," developed specifically aiming towards improved efficiency, ease of manufacturing, reduced material usage, lower costs, better moisture management capabilities, and enhanced insulating properties.

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