•当初步配合比是300:150:600:1200(kg/m3)时,拌合混凝土进行工作性检验,发现坍落度偏低需增加5%的水泥浆,问调整后的混凝土配合比是多少?(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE答:(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
水泥:300(1+5%)=315 kg/m3(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
水:(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
150 (1+5%)=157.5 kg/m3(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE配合比(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
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(1)(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
单位用量表达方式:(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
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水泥∶水∶砂∶石(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
315 ∶ 157.5 ∶ 600 ∶ 1200(kg/m3)(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(2)相对用量表达方式(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
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水泥∶砂∶石,W/C=(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE
1 ∶ 1.90 ∶ 3.81,W/C=0.50(/ó]ÁHt#'bbs.3c3t.comq`j¥3/6nE