| 煤矸石掺合料对水泥浆体结构与性能的影响 |
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| 引用本文： | 朱蓓蓉,杨全兵.煤矸石掺合料对水泥浆体结构与性能的影响[J].低温建筑技术,2005(2):1-3. |
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| 作者姓名： | 朱蓓蓉 杨全兵 |
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| 作者单位： | 同济大学材料工程研究所,混凝土材料研究实验室,上海,200433;同济大学材料工程研究所,混凝土材料研究实验室,上海,200433 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 研究了煤矸石作为掺合料对水泥浆体强度及孔结构的影响。结果表明:与基准水泥浆体相比,煤矸石水泥浆体早期强度较低,但后期强度发展较快,低掺量(<30%)煤矸石水泥浆体后期(28d)强度可接近或达到基准水泥浆体强度;相同掺量条件下,与粉煤灰水泥浆体相比,煤矸石水泥浆体各龄期强度均较高;与矿粉水泥浆体相比,煤矸石水泥浆体早期强度较高,后期两者强度相当;与基准水泥浆体相比,煤矸石水泥浆体总孔隙率有所上升,但其孔径后期有所细化。
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| 关 键 词： | 煤矸石 掺合料 水泥浆体 强度 孔结构 |
| 文章编号： | 1001-6864(2005)02-0001-03 |
| 修稿时间： | 2004年12月1日 |
EFFECT OF COAL GANGUE ON STRUCTURE AND PROPERTY |
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| ZHU Bei-rong,YANG Quan-bing.EFFECT OF COAL GANGUE ON STRUCTURE AND PROPERTY[J].Low Temperature Architecture Technology,2005(2):1-3. |
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| Authors: | ZHU Bei-rong YANG Quan-bing |
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| Abstract: | Effect of coal gangue on pore structure and strength of cement paste were investigated.Results show that strength of coal gangue cement paste at early age is lower,but the strength development is quicker later on compared with that of reference cement paste.When gangue content is less than 30 percents,the strength of coal gangue cement paste at the age of 28d is close to or reaches that of reference cement paste.In the same content,strength of coal gangue cement paste is higher than that of fly ash cement paste at any age and higher than blast-furnace slag cement paste at early age.The strengths are close later on.Total porosity of coal gangue cement paste is higher but its pore size at later age is smaller than that of reference cement paste. |
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| Keywords: | coal gangue admixture cement paste strength pore structure |
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