| 超塑化剂对水泥早期水化影响的灰值分析 |
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| 引用本文： | 张思佳,陈龙,邢晓明,蒋亚清. 超塑化剂对水泥早期水化影响的灰值分析[J]. 混凝土与水泥制品, 2009, 0(2) |
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| 作者姓名： | 张思佳 陈龙 邢晓明 蒋亚清 |
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| 作者单位： | 河海大学材料科学与工程学院,南京,210098;河海大学材料科学与工程学院,南京,210098;河海大学材料科学与工程学院,南京,210098;河海大学材料科学与工程学院,南京,210098 |
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| 摘 要： | 对掺萘磺酸盐缩合物减水剂和两种聚羧酸减水剂的水泥浆体水化24h的微观形貌进行了背散射电子图像测试及灰度值分析,发现超塑化剂对水泥早期水化具有重要影响,掺不同超塑化剂的水泥早期水化产物有所区别.试验同时还得出可利用灰度值来表征掺超塑化剂水泥的早期水化产物的结论.
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| 关 键 词： | 混凝土外加剂 减水剂 水泥水化 背散射电子图像 |
Gray Value Analysis for Effect of Superplasticizers on the Early Hydration of Cement |
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| Abstract: | By using backscattered electron images for testing and analysing the grey value of the microstructure of cement pastes with respectively adding naphthalene formaldehyde condensate and two kinds of polycarboxylate type superplasticizers, cured for 24 hours, were tested. It is found that superplasticizers may strongly effect early hydration of cement, and there are some differences for early hydrates of cement when different superplasticizers are used. Grey value can be used to express the different hydration... |
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| Keywords: | Concrete admixture Water reducer Cement hydration Backscattered electron image |
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