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我们采用吉林省开山屯化学纤维厂的木质素磺酸钙(简称M减水剂)进行了节约水泥用量的试验。大量的试验结果表明,在混凝土中掺入少量的M减水剂,可改善混凝土性能,获得明显的经济效益。一、原料的主要性能原材料的主要性能见表1 二、M减水剂的最佳掺量混凝土中掺入的M减水剂,要有适当的比例,并非掺入量越多越好。另外,对不同龄期的混凝土其增强效果是不同的,如表2所示。从试验情况来看,17号和20号试件3天后的抗压强度比基准混凝土低,7天、28天后,
We used the calcium lignosulphonate (abbreviated as M water reducer) of Kaishan Tun Chemical Fiber Plant of Jilin Province to conduct cement-saving tests. A large number of test results show that the incorporation of a small amount of M water-reducing agent in concrete can improve the performance of concrete and obtain significant economic benefits. First, the main performance of raw materials The main properties of raw materials are shown in Table 1. Second, the best amount of M superplasticizer mixed with M superplasticizer, have a proper ratio, not the more the better the amount of incorporation. In addition, the reinforcing effect is different for concrete of different ages, as shown in Table 2. From the test situation, the compressive strength of No. 17 and No. 20 specimens after 3 days is lower than the benchmark concrete, after 7 days and 28 days,