酸度減低試驗 的英文怎麼說
中文拼音 [suāndùjiǎndīshìyàn]
酸度減低試驗
英文
acidity reduction test-
The shrinkage reducing rate can reach to 70 % at the 7th day, and the shrinkage reducing rate can reach to 40 % at the 28th day. it doesn ’ t reduce the intension of the concrete. it can have an ability of 10 18 % of reducing water rate
通過對比試驗發現,聚丙烯酸鹽類減縮劑的最佳摻量為水泥質量的1 . 2 % , 7天減縮率可達70 % , 28天減縮率可達40 % ,且不降低混凝土的強度,具有10 18 %的減水率,有一定的緩凝作用。The author of this article used orthogonal test design, arranged the test scheme scientifically, selected material carefully, at last yielded an high strength lightweight aggregate concrete material ( hslacm ), whose compressive strength exceeded 50 mpa and quality under 1950kg / m3, mainly by using 42. 5 ordinary portland cement, expanded fly ash aggregate, silica fume, superplasticizers and so on
本文是在廣泛閱讀國內外有關資料的基礎上,採用正交設計,科學地安排試驗,精心選材,用42 . 5普通硅酸鹽水泥、粉煤灰陶粒、硅灰、高效減水劑等材料,採用一般工藝配製出了一種抗壓強度超過50mpa 、質量低於1950kg m ~ 3的高強輕骨料混凝土材料。
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