低品位石灰岩用作胶凝—灌浆材料的研究  

Research on the Low-purity Limestone Used as Cementitious-grout Materials

作　　者：殷素红[1] 文梓芸[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《矿产综合利用》2002年第4期35-40,共6页Multipurpose Utilization of Mineral Resources

基　　金：广东省自然科学基金项目 (96 0 2 5 3);广州市建委科技项目 (9812 );长江科学院基金资助项目(B4 - 870 )

摘　　要：研究了不同品种石灰岩与不同性质水玻璃在常温下的反应。Beo=4 5～ 4 8的过渡态水玻璃与低品位石灰岩反应速度较快 ,反应程度较大 ,浆液凝固时间较短 ,能达到一定胶结强度 ,生成水化硅酸钙 (镁 )凝胶产物。可开发为一种新型胶凝材料 ,尤其适合用作灌浆材料。与其他灌浆材料相比 。The reaction between various limestone and 'water glass'of different properties in near ambient temperature has been studied.The result showed that some low-purity limestone and certain 'transitional'concentrated water glass(Be o=45～48) were the better for quicker reaction,shorter setting time and higher cementing strength.The reaction product was identified as some hydrate calcium silicate gel.Therefore,a new type of cementitious material,especially used as a new grout material,has been developed.It is,compared with other current grout materials,a typical'green 'and'environment-friend'material with very low cost and good comprehensive properties.The performances as grout material of limestone and water glass were studied.

关 键 词：胶凝-灌浆材料 低品位石灰岩 水玻璃 性能 胶结强度 

分 类 号：TU5[建筑科学—建筑技术科学]