常友光 1石迎峰 2万晓龙 2陆胜林 2晏小熊 2薛子鹏2
作者信息
- 1. 浙江工业大学土木工程学院,浙江 杭州 310014
- 2. 中国铁建港航局集团有限公司,广东珠海 519000
- 折叠
摘要
Abstract
Simulation grouting experiments were conducted for underwater structure mortise cavities.The simulation required prefabricated scaled molds,modified underwater pouring molds based on standard molds,and customized grouting conduits,glass covers,and rubber waterstop pads to ensure grouting quality and accurately replicate on-site pouring of fine-aggregate self-compacting concrete.The grouting materials were optimized by varying the proportions of ordinary sand,standard sand,aggregates of different particle sizes,and flocculant additives.Slump flow tests were performed on freshly mixed grouting materials,and standard cubic specimens made from different mix ratios were subjected to different curing conditions:one group in a standard curing room and another underwater,forming a control group.A universal testing machine was used to conduct compressive strength tests and analysis on specimens cured for 7d,14d,and 28d.The study identified fine-aggregate self-compacting concrete with superior flowability,anti-dispersion properties,and compressive strength,offering cost savings,reduced pollution,and improved efficiency for practical engineering applications.关键词
细石自密实混凝土/坍落扩展度/抗分散性能/抗压强度Key words
Fine-aggregate self-compacting concrete/slump flow/anti-dispersion performance/compressive strength分类
水利科学
