| 高强度高性能混凝土研发的技术特点与对策 |
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| 引用本文： | 冯乃谦,叶浩文.高强度高性能混凝土研发的技术特点与对策[J].混凝土与水泥制品,2008(3):1-4. |
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| 作者姓名： | 冯乃谦 叶浩文 |
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| 作者单位： | 1. 清华大学土木工程系,北京,100084
2. 中国建筑工程总公司广州市集团有限公司联合体 |
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| 摘 要： | 高强度高性能混凝土在开发和应用中还存在一些技术难点:(1)由于新拌水泥混凝土的结构粘度大,泵送施工困难;(2)在结构形成过程中,产生自收缩与开裂;(3)在潮湿环境下,由于水泥继续水化,会产生湿胀开裂;(4)在高温作用下,高强度高性能混凝土结构会发生爆裂。针对上述问题,广州西塔项目工程开展了研究,采取了相应的对策。
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| 关 键 词： | 结构粘度 自收缩 湿胀开裂 爆裂 |
| 文章编号： | 1000-4637(2008)03-01-04 |
| 修稿时间： | 2008年5月4日 |
Technical Characteristics and Counter Measures for Research and Development of High Strength and High Performance Concrete |
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| FENG Nai-qian,YE Hao-wen.Technical Characteristics and Counter Measures for Research and Development of High Strength and High Performance Concrete[J].China Concrete and Cement Products,2008(3):1-4. |
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| Authors: | FENG Nai-qian YE Hao-wen |
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| Abstract: | There are several difficult problems to solve on the technics of High Strengh and High Performance Concrete(HS/HPC):(1) The pumping construction of the fresh HS/HPC is difficult due to its structure viscosity;(2) To take place the self-shrinkage and cracking during the structure formation;(3) The HS/HPC will crack due to cement continued hydration when it subject to the wetting condition;(4) The structure of HS/HPC will be blasted while exposing to high temperature;In this paper,the measures,which will be taken to solve these problems respectively and are based on the study of the project of Guangzhou West-tower,are discussed. |
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| Keywords: | Structure viscosity Self-shrinkage Wetting expansion and cracking Blast |
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