一、什么是水泥燕子随着杂有花瓣的粘土来搭巢,是利用了粘土的胶结性质,粘土的胶结性有点象水泥,因此,可说粘土是最原始的水泥。 1820年俄国切利也夫初步发明用煆烧粘土和石灰等物制成能在水中固结的胶凝材料,这就是普通水泥的开始。一百多年来,世界各国因各项建筑上的需要,在这方面有了不断的创造与提高。我国使用水泥已有好几十年的历史了。但对水泥的叫法很不统一,有的叫“洋灰”,有的叫“水门汀”, First, what is a cement swallow With miscellaneous petals of clay to nest, is the use of the cementation of clay, clay cementing a bit like cement, so it can be said that clay is the most primitive cement. In 1820, Chelyiev, ​​Russia, initially invented a cementitious material that can be consolidated in water by burning clay, lime, etc. This is the beginning of normal cement. For more than one hundred years, all countries in the world have continuously created and improved this area because of various architectural needs. China has used cement for several decades. But the name of the cement is not uniform, and some called “cement”, some called “cement”