High-crack resistance resistant fire-proof stopper

Abstract

The invention relates to a high-crack resistance resistant fire-proof stopper, and belongs to the field of refractory materials. According to the high-crack resistance resistant fire-proof stopper, serpentine and dolomite are treated, the number of harmful pores is reduced, a fine structure of a fire-proof crack-resistant base material is refined, the compactness is improved, stress concentrationis reduced, expansion stress is relieved, cracks due to a hard heat effecthigh temperature are avoided, a rheological agent and sodium metasilicate are introduced for wrapping and assisting in fillingof stopper pores, and the compaction and a thermal crack resistance effect of the base material are improved; octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and the like are used as rawmaterials, so that the internal stability of the high-crack resistance resistant fire-proof stopper is improved, and different levels of expansions which is generated after heating is conducted is reduced; coal ash is subjected to pre-treatment, so that the bonding strength in a system is further improved, the treated coal ash further plays a part inand further filling and toughening effects are realized, the problem that under heating action, the stopper cracks due to heating can be effectively solved, and the internal mechanical performance is improved. By means of the high-crack resistanceresistant fire-proof stopper, the problems that currently, commonly used fire-proof stoppers are prone to crack in the presence of heat, and the internal mechanical performance is poor are solved.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a high-crack-resistant fireproof blocking material. Background technique [0002] The wires and cables used in modern buildings are often laid in pipelines or clustered in cable channels, and various penetrating openings are increasing day by day. This is actually a potential fire hazard. When a fire occurs, on the one hand, flames and toxic fumes often spread to adjacent houses and other places through holes formed when wires, cables and pipes pass through walls, warehouse walls, floors, decks, etc.; on the other hand, pipelines such as cable channels may form Shaft effect, thereby accelerating the expansion of fire accidents and causing serious consequences. At present, fireproof sealing materials are generally used to seal the penetration openings of wires and cables through walls. This fireproof measure can effectively prevent the spread of fire and the sprea...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-crack-resistant fireproof blockage for the problems that the commonly used fireproof blockage is easy to crack when exposed to heat and has poor internal mechanical properties.