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產(chǎn)品知識

混高危巷道封堵材料

2016-01-27    來(lái)源:    作者:  瀏覽次數:3047

應用范圍:高危巷道的封堵

關(guān)鍵詞:體積不收縮,膨脹性能好

我國有很多煤礦存在高瓦斯和地下水滲透的情況,在一些廢棄不用的巷道里容易蓄積,當達到一定量時(shí)會(huì )出現事故隱患。以前煤礦一般用黃土、矸石進(jìn)行回填封堵,但隨著(zhù)時(shí)間增加瓦斯、水會(huì )對封堵材料造成侵蝕,材料本身也會(huì )收縮坍塌,開(kāi)裂等,從新對安全生產(chǎn)造成危害。我公司研發(fā)的高危巷道封堵材料可以完全解決以上問(wèn)題,并且成本低,容易操作,膨脹系數可達30%以上,材料固化后,不收縮,耐侵蝕,鎖水性能好,可以徹底杜絕廢水,瓦斯的蓄積危害。

此材料主料為粉煤灰,輔料為普通水泥和巷道封堵材料,水固比0.9-1.2,強度28天可以達到2 MPA,調節巷道封堵料的用量可以達到50%左右膨脹。

高危巷道封堵材料在同煤集團忻州窯礦進(jìn)行多年使用,經(jīng)多次跟蹤檢測各項指標均達到設計要求。


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