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水泥是商品混凝土生产的重要原材料。在我国,水泥业与混凝土业分属两个产业,水泥厂生产出来的水泥不是专为混凝土“量身定做”的,因此水泥在混凝土应用中会存在许多问题。业内人士针对商品混凝土产品特性,提出了一些对水泥生产企业的期望,其中包括:水泥厂家能稳定原材料来源和质量;保证水泥的富余强度;水泥的细度不宜过小;控制水泥的碱含量;出厂温度不宜过高;水泥厂家尽量少掺掺合料;助磨剂的使用要能与市面上的外加剂兼容等等,这些期望中有些极具普遍性。作为需方的混凝土企业,除在期望水泥生产厂能根据商品混凝土的需要对水泥的品质作一些改善外,我们能否掌握主动权,鉴别适用于商品混凝土的优质水泥呢?水泥中的哪些指标是我们需要注意的呢?
Cement is an important raw material for the production of commercial concrete. In our country, the cement industry and the concrete industry belong to two industries. The cement produced by the cement plant is not tailor-made for concrete. Therefore, there are many problems in cement application in concrete. According to the characteristics of commercial concrete products, the insiders put forward some expectations for cement production enterprises, including: cement manufacturers can stabilize the sources and quality of raw materials; ensure the excess strength of cement; the fineness of cement should not be too small; control the alkali content of cement; The factory temperature should not be too high; cement manufacturers as little as possible doped mixed materials; grinding aids to use with the market to be compatible with additives, etc., some of these expectations are very universal. As a demand-side concrete enterprise, apart from expecting cement factories to make some improvement on the quality of cement according to the demand of commodity concrete, can we take the initiative to identify high-quality cement suitable for commercial concrete? What are the indicators in cement Is that we need to pay attention to?