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..............page:6-7,26
..............page:41-42,44
..............page:97-98,104
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..............page:66-67,73
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..............page:102-104
Plain concrete mixture ratio brief analysis
haiying lei honggang yao(1.luoyang municipal engineering administrative office henan luoyang 471001; (2 xi an construction scientific and technical university civil engineering institute shaanxi xi an 710055)
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Masonry and building mortar mixture ratio discussion
honggang yao1 haiying lei2(1.xi an construction scientific and technical university civil engineering institute shaanxi xi an 7100552.luoyang municipal engineering administrative office henan luoyang 471001)
..............page:32-33