
高掺量粉煤灰碾压混凝土路用力学性能的研
发布时间: 2006-04-01 00:00 查看: 2630次
曹诚 孙伟 秦鸿根
摘 要:通过对高掺量粉煤灰碾压混凝土的力学性能的测试和对其中粉煤灰掺量的影响及提高水泥标号对粉煤灰激发效果的机理分析,得出以下结论:高掺量粉煤灰碾压混凝土的早期强度随粉煤灰掺量的提高呈下降趋势,但随龄期增长增幅增大;提高粉煤灰掺量有利于降低碾压混凝土的脆性;提高水泥标号对高掺量粉煤灰碾压混凝土的早期强度有利,但降低了抗折强度的后期增幅。
关键词:粉煤灰;高掺量;碾压混凝土;强度
An study of mechanical properties of roller compacted concrete
with high volume fly ash
CAO Cheng
(Tianjin Municipal and Highway Research Institute, Tianjin 300074,China)
SUN Wei QIN Hong-gen
(Southeast University, China)
Abstract:By testing the mechanical properties of RCC, and analyzing the influence of fly ash volume and the mechanism of cement activating-effect on fly ash, following conclusions are given in the paper. Early age strength of RCC with high volume fly ash decreases with the increment of fly ash volume, but it increases by a big margin with the curing age. Increasing the fly ash volume in RCC is beneficial to decreasing its brittleness. Raising the cement index does good to the early age strength of RCC with high volume fly ash, but it is unfavourable to later period increasing-extent of flexural strength.
Key words:fly ash; high volume; roller compacted concrete; strength
摘 要:通过对高掺量粉煤灰碾压混凝土的力学性能的测试和对其中粉煤灰掺量的影响及提高水泥标号对粉煤灰激发效果的机理分析,得出以下结论:高掺量粉煤灰碾压混凝土的早期强度随粉煤灰掺量的提高呈下降趋势,但随龄期增长增幅增大;提高粉煤灰掺量有利于降低碾压混凝土的脆性;提高水泥标号对高掺量粉煤灰碾压混凝土的早期强度有利,但降低了抗折强度的后期增幅。
关键词:粉煤灰;高掺量;碾压混凝土;强度
An study of mechanical properties of roller compacted concrete
with high volume fly ash
CAO Cheng
(Tianjin Municipal and Highway Research Institute, Tianjin 300074,China)
SUN Wei QIN Hong-gen
(Southeast University, China)
Abstract:By testing the mechanical properties of RCC, and analyzing the influence of fly ash volume and the mechanism of cement activating-effect on fly ash, following conclusions are given in the paper. Early age strength of RCC with high volume fly ash decreases with the increment of fly ash volume, but it increases by a big margin with the curing age. Increasing the fly ash volume in RCC is beneficial to decreasing its brittleness. Raising the cement index does good to the early age strength of RCC with high volume fly ash, but it is unfavourable to later period increasing-extent of flexural strength.
Key words:fly ash; high volume; roller compacted concrete; strength
>> 相关内容
- 低品质粉煤灰的活性激发研究 (点击:14192 次)
- 废石膏粉煤灰石灰结合料的研究 (点击:14210 次)
- 粉煤灰和矿渣影响混凝土碳化的因素及建议 (点击:15551 次)
- 粉煤灰、矿粉复合双掺在大体积混凝土配合比中的应用 (点击:19777 次)
- 劣质粉煤灰对混凝土性能的影响探讨 (点击:20012 次)
- 【技术交流】煤矸石材料填筑路基施工研究 (点击:14923 次)
- 粉煤灰水热合成沸石分子筛的研究进展 (点击:23468 次)
- 谈谈公路工程施工中泡沫混凝土的应用 (点击:17913 次)
- 煤矸石特性与资源化利用研究分析,综合利用依然是大难... (点击:23584 次)
#
最新技术资讯
更多>>- 国家力推!全固废免烧胶凝技术入选国家重点推广的低碳技术目录,2025上海固废论坛重磅...
- 2025第二届中国(江西)国际绿色矿业博览会,即将盛大开幕!
- 2025第二届中国国际煤炭及矿山技术装备展览会
- 掘金西部“新”机遇!2025成都国际化工装备博览会盛势启航!
- 2025工业固废与建筑垃圾综合利用及工业污泥协同处置战略合作论坛邀请函
- 【技术分享】以粉煤灰、赤泥、尾矿、气化渣、煤矸石等 工业固废为基本原料制备高性能...
- 【技术分享】助力“双碳”目标,响应低能耗绿色建筑趋势,一种粉煤灰及其它固体废渣复...
- 一种利用固体废渣制备人造砂子、石子、砂粉料的制备方法
- 粉煤灰“超细活化”成建筑新资源
- 关于粉煤灰循环利用的发明专利