论文部分内容阅读
本文提出用含钛矿棉短纤维增强水泥制品。对此种矿棉在水泥中的抗腐蚀性,矿棉—水泥试件的长期强度进行了研究。简介了“干法”生产工艺、最佳配合比和最优工艺参数,及试件的一系列物理力学性质。最后评述了该种复合材料的微观特性与界面效应,以及对其制品宏观性能所产生的影响。研究结果表明:含钛矿棉的耐碱性是良好的,对水泥的增强效果显著;“干法”生产工艺简单,成本低廉。在原材料合格的条件下,矿棉—水泥复合体的复合特性主要取决于界面结构的密实度和界面区内的新生物。而界面效应的好坏,又直接与工艺参数、原料配合比、矿棉的松解及其在水泥浆中的分散性密切相关。为此,作者提出了在本工艺条件下的界面区结构模型和改善界面效应的某些技术措施。
This article proposes the use of titanium-containing mineral wool staple fiber reinforced cement products. The corrosion resistance of this type of mineral wool in cement and the long-term strength of mineral wool-cement specimens were studied. The “dry process” production process, the best mix ratio and the optimum process parameters, and a series of physical and mechanical properties of the test piece are introduced. Finally, the microscopic and interfacial effects of the composites were reviewed, as well as the effects on the macroscopic properties of the composites. The results of the study show that the alkali resistance of titanium-containing mineral wool is good and the effect of reinforcing cement is significant. The “dry process” production process is simple and the cost is low. Under the condition of qualified raw materials, the composite properties of mineral wool-cement composites mainly depend on the compactness of the interface structure and new organisms in the interface area. The quality of the interface effect is directly related to the process parameters, raw material mix ratio, loosening of mineral wool and its dispersion in cement slurry. For this reason, the author proposes the structural model of the interface area under the present process conditions and some technical measures to improve the interface effect.