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当今,混凝土已成为使用最广泛的建筑材料。在以往混凝土的标准中虽然对混凝土的长期性和耐久性有规定,但在实施过程中却把其与混凝土强度等同视之,片面强调混凝土的强度。混凝土的耐久性不足,不仅影响结构的正常使用,还会影响结构的使用年限,造成资源的极大浪费,同时产生大量的建筑垃圾;因此,提高混凝土的耐久性对于实现可持续发展战略,更好利用资源、节约能源和环境保护,建设社会主义和谐社会都具有十分重要的意义;
Today, concrete has become the most widely used building material. In the past standards of concrete although the long-term durability of concrete and have provisions, but in the implementation process but with its equivalent to the strength of concrete, and one-sided emphasis on the strength of concrete. Concrete durability is not enough, not only affect the normal use of the structure, but also affect the service life of the structure, resulting in a great waste of resources, while generating a lot of construction waste; therefore, to improve the durability of concrete for sustainable development strategy, more It is of great significance to make good use of resources, save energy, protect the environment and build a harmonious socialist society.