烧结页岩清水砖抗冻性能研究

广西科技大学新型建筑材料课题组前期试验数据作为理论依据,以烧结页岩砖的原料物理性质为基础,研制开发烧结页岩清水砖。为了进一步研究烧结页岩清水砖的抗冻性能,通过将烧结页岩清水砖与普通烧结页岩砖试件的理化成分与微观结构进行对比分析,再进行冻融循环对比试验,以及砖体在饱水状态下的导热系数测定,得出清水烧结页岩砖抗冻性能要优于普通烧结页岩砖。试验结论为:烧结页岩清水砖抗冻性能达到《墙体材料应用统一技术规范》GB 50574-2010相关指标。为后续试验提供相关数据,为烧结页岩清水砖的推广奠定基础,并建议将饱水状态下的砖体导热系数作为砖体抗冻性能指标之一。

Study on frost resistance sintering shale ganged bricks

According to test new building materials Our previous experimental data Guangxi University of Technology as a theoretical basis, sintered shale ganged brick raw materials and their physical properties, based on research and development of sintered shale water. To further investigate the sintering shale bricks of frost resistance, through the physical and chemical composition of the sintered shale ganged bricks with ordinary sintered shale brick specimen and microstructure were analyzed, and then with ordinary sintering shale brick freeze-thaw cycles were performed comparative tests, and in brick thermal conductivity of water saturated state measured water drawn sintered shale brick frost resistance superior to ordinary sintered shale brick. The test concluded: sintered shale bricks frost performance to "wall material application of a uniform technical specifications" GB 50574 - 2010 related indicators. Provide follow-up test data, laying the foundation for the promotion of sintering shale bricks, bricks and recommended water saturated state thermal conductivity as one brick frost performance.