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随着近代科学技术的发展,水泥混凝土技术有了较快的发展,其主攻方向是快硬、轻质、高强。为了提高强度,采取掺外加剂、聚合物浸溃、纤维增强等措施。水泥混凝土凝固前结构的形成和发展直接影响凝固后的强度和其他性能的发展,因此研究水泥浆体与新拌混凝土的物理性质具有重要意义。由于近代各种新的测试手段的出现,使人们对水泥浆体和新拌混凝土的亚微观和微观结构有了一些认识,把水泥浆体和新拌混凝土的物理性质同硬化后的性能有机地联系起来。只有在掌握这些规律的基础上,才有可能设计出更有利于克服混凝土缺陷、发挥潜力的新工艺。为此,我们特邀请建材部建筑材料科学研究院付院长、付总工程师黄大能同志进行有关理论方面的讲述。
With the development of modern science and technology, cement concrete technology has developed rapidly, and its main attack direction is fast, light, and strong. In order to increase the strength, measures such as admixture with additives, polymer impregnation, and fiber reinforcement are taken. The formation and development of cement concrete before solidification directly affects the development of strength and other properties after solidification. Therefore, it is of great significance to study the physical properties of cement paste and fresh concrete. Due to the emergence of various new testing methods in modern times, people have gained some understanding of the submicroscopic and microscopic structures of cement paste and fresh concrete, and the physical properties of the cement paste and the fresh concrete are combined with the properties of the hardened organically. Link up. Only by mastering these laws can it be possible to design new processes that are more conducive to overcoming concrete defects and exploiting their potential. To this end, we specially invite Comrade Huang Daeng, Dean of the Institute of Building Materials Science and Technology of the Ministry of Building Materials, and the Comrade Huang Daeng to give an account of the relevant theoretical aspects.