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由于人造轻骨料(如粉煤灰陶粒、页岩陶粒、粘土陶粒、膨胀矿渣珠等) 比天然轻骨料(浮石、火山渣等) 技术性能要好,因此,目前结构轻骨料混凝土大都采用人造轻骨料配制。人造轻骨料的应用,在国外已有七十多年的历史,美国最早,丹麦、苏联、英国等国相继其后。我国于1958年才开始应用,1966年还在天津建成了第一条粉煤灰陶粒商品生产线。随着科学研究与生产技术的深入与发展,用人造轻骨料配制的轻骨料混凝土,其特性已逐渐为人们所认识,由于它具有许多优点,应用的规模和范围,也逐渐在扩大中。一、结构轻骨料混凝土的特性结构轻骨料混凝土,不仅在相同抗压条
As man-made lightweight aggregates (such as fly ash ceramisite, shale ceramsite, clay ceramsite, expanded slag beads, etc.) are better than natural lightweight aggregate (pumice, volcanic slag, etc.) technical performance, therefore, the current structure of lightweight aggregate Most of the concrete is made of artificial light aggregate. The application of man-made lightweight aggregates has been in foreign countries for more than 70 years. The United States was the earliest, followed by Denmark, the Soviet Union, and the United Kingdom. China began its application in 1958 and completed the first fly ash ceramsite commodity production line in Tianjin in 1966. With the deepening and development of scientific research and production technology, the properties of light-weight aggregate concrete formulated with artificial lightweight aggregates have gradually been recognized by people. Because of its many advantages, the scale and scope of applications are gradually expanding. . First, the characteristics of the structure of light-weight concrete structure lightweight aggregate concrete, not only in the same compression bar