高铝水泥耐火混凝土火灾高温后强度及耐久性试验研究

THE TEST RESEARCH ON STRENGTH AND DURABILITY OF REFRACTORY CONCRETEWITH HIGH ALUMINUM CEMENT AFTER A FIRE

研究了以高铝水泥为胶结材料 ,以陶粒、耐火砖块、陶砂等为骨料配制的 4种耐火混凝土 ,在模拟火灾高温后的强度及氯离子渗透性的变化。试验表明 ,在慢速升温的条件下 ,不同骨料的高铝水泥耐火混凝土强度均有所下降 ,经高温后耐火砖混凝土、陶砂陶粒混凝土和普砂陶粒混凝土较普通混凝土表现出良好的耐火性能。

The strength and permeability of the chloride ion of four refractory concretes,in which high aluminum cement is used as cementing agent and ceramsite,fire-brick,taosha are used as aggregates,are studied in this paper.The test shows that the strengths of the refractory concretes with different aggregates are all decreased under slowly heating,compared with common concrete,fire-brick concrete,taosha-ceramsite concrete and sand-ceramsite concrete all have good fire-proof function.