水泥混凝土配合比设计及强度试验检测研究
Research on Mix Design and Strength Test Detection of Cement Concrete
李龙1
作者信息
- 1. 中铁十一局集团第一工程有限公司,湖北 襄阳 441100
- 折叠
摘要
通过探讨水泥混凝土配合比设计的关键因素及其对混凝土性能的影响,包括砂率、水灰比以及强度的控制.分析公路路面水泥混凝土配合比设计的要点,如根据公路等级确定水灰比、设定合理的砂率以及配合比的试配过程.研究水泥混凝土强度检测的依据,考虑了公路等级、轴载标准、温度条件以及地基条件对混凝土强度要求的影响.探讨抗折法在混凝土抗压强度试验检测中的应用,包括仪器配套要求、试件的制备与养护、试验流程与方法以及试验效果的评价.以期为公路路面材料的设计与施工提供理论依据和技术支持.
Abstract
This paper discusses the key factors in the mix design of cement concrete and their impact on concrete performance,including sand ratio,water-cement ratio,and strength control.It analyzes the essential points of mix design for cement concrete used in highway pavements,such as determining the water-cement ratio based on the highway grade,setting a reasonable sand ratio,and the trial mixing process of the mix design.The basis for strength testing of cement concrete is studied,considering the influence of highway grade,axle load standards,temperature conditions,and foundation conditions on the strength requirements of concrete.The application of the flexural method in the testing of concrete compressive strength is explored,including the instrumentation requirements,preparation and curing of test specimens,test procedures and methods,and evaluation of test results.The aim is to provide theoretical basis and technical support for the design and construction of highway pavement materials.
关键词
水泥混凝土/配合比设计/砂率/水灰比/强度控制/公路等级/强度检测/抗折法Key words
cement concrete/mix design/sand ratio/water-cement ratio/strength control/highway grade/strength testing/flexural method引用本文复制引用
出版年
2024
NETL
NSTL
万方数据