抗裂混凝土原材料的选择与控制

Selection and control of anti-crack concrete raw materials

现代混凝土的原材料组成变化很大,特别是各种矿物掺和料与化学外加剂的引入,使混凝土开裂问题变得更为复杂。通过对各种原材料品质对混凝土抗裂性影响的分析,以提高混凝土的抗裂性及耐久性为原则,提出了高抗裂混凝土的原材料控制技术,为高抗裂混凝土的原材料选择提供了技术依据。

The composition of raw materials of modem concrete varies greatly, especially with the introduction of various mineral admixtures and chemical additives, which make the issue of concrete crack even more complicated. Based on evaluation of anti-crack performance of raw materials, it presents raw material control technology of high anti-crack concrete under the guidance of high crack resistance and durability of concrete, which provides a technical base for the selection of anti-crack concrete raw materials.