標(biāo)準(zhǔn)編號:	GB/T 2420-1981
中文名稱:	水泥抗硫酸鹽侵蝕快速試驗(yàn)方法
英文名稱:	Quick Test Method on Cements Sulfate-resistance
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
發(fā)布日期:	1981-10-1
實(shí)施日期:	1981-10-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB/T 749-2008 水泥抗硫酸鹽侵蝕試驗(yàn)方法
被替代日期:	2009-4-1
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	3000 字
翻譯價(jià)格(元):	120.0
交付時(shí)間:	付款后 1 個(gè)工作日

This national standard is applicable to compare the cement's corrosion resistance in the sulfate-contained environmental water or the man-made sulfate solution. This national standard adopts 1:2:5 cavity sand and 10x10x60 mm prismatic specimen. After being extruded and formed, it will be treated with 1-day cabinet curing, 7-day water curing (50℃), and 28-day ambient-temperature erosion. The particle size of the standard sand ranges from 0.25mm to 0.65mm. This national standard, based on the ratio of the cement mortar specimen’s flexural strength in the erosion solution and that in the identically-timed fresh water (soaking time: 28 days), calculates the corrosion resistance coefficient and subsequently compares the cement’s corrosion resistance.

I. Instrument 1 II. Material 3 III. Temperature and humidity 4 IV. Specimen molding 4 IV. Specimen's curing and corrosion 4 VI. Specimen's Breaking 5 VII. Computation of Results 5