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一、国内外混凝土研究动向混凝土是一种重要的并具有广阔发展前途的建筑材料,目前世界上混凝土的使用量每年高达50～60亿吨以上,成为使用量最大的一种人造建筑材料。随着科学技术的发展,混凝土的性能必然会有不断的改善和提高,据美国2000年委员会预测,混凝土的主要性能指标—一强度方面,到廿世纪末抗压强度将可达到4200 kg/cm~2,使用1400kg/cm~2的混凝土也会很普遍。国际上对混凝土的研究动向,主要可归纳为三个方面:
First, the trend of concrete research at home and abroad Concrete is an important and promising development of building materials, the current use of concrete in the world up to 50 to 6 billion tons per year, becoming the largest use of a man-made building materials. With the development of science and technology, the performance of concrete will inevitably be continuously improved and improved. According to the prediction of the United States Commission in 2000, the compressive strength of concrete, which is the main performance index of concrete, will reach 4200 kg / cm ~ 2, the use of 1400kg / cm ~ 2 concrete will be very common. International research trends in concrete, can be summarized into three aspects: