ULTRA HIGH STRENGTH CONCRETE
ULTRA HIGH STRENGTH CONCRETE
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超高强度混凝土
DOI：
10.15554/pcij.02011967.53.59
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发表时间：
1967
期刊：
影响因子：
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通讯作者：
A. Harris
中科院分区：
文献类型：
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作者：
A. Harris
一个委员会成立的方法，实现高强度混凝土，以找出是否混凝土的抗压强度可以大大增加，使预应力混凝土可能成为不仅是一个经济的结构材料的吸引力的特点，但材料的高比强度以及。水泥浆体压缩、压缩振动复合、甚高频振动和水泥分级是水泥压实的主要方法。结合水泥集料、二氧化硅-石灰结合和合成树脂混凝土讨论了水泥-集料结合的改善。阐述了在混凝土中产生三轴应力的方法。综述了超高强度钢的生产方法。建议下列应用，其中强度的增加将带来优势：/1/某些现有类型梁的有效跨度的扩展，/2/用于大跨度管状构件的三角形结构，/3/用作钢筋的预应力混凝土杆的构造，和/4/简单受压构件。
A COMMISSION WAS ESTABLISHED ON METHODS OF ACHIEVING HIGH- STRENGTH CONCRETE TO FIND OUT WHETHER THE EFFECTIVE COMPRESSIVE STRENGTH OF CONCRETE CAN BE SUBSTANTIALLY INCREASED SO THAT PRESTRESSED CONCRETE MAY BECOME NOT MERELY AN ECONOMIC STRUCTURAL MATERIAL OF ATTRACTIVE CHARACTERISTICS, BUT A MATERIAL OF HIGH SPECIFIC STRENGTH AS WELL. THE FOLLOWING MEANS OF COMPACTION ARE DISCUSSED' COMPRESSION OF CEMENT PASTE, COMPRESSION COMBINED WITH VIBRATION, VERY-HIGH-FREQUENCY VIBRATION AND GRADING OF CEMENT. IMPROVEMENT OF THE CEMENT-AGGREGATE BOND IS DISCUSSED IN RELATION TO CEMENTITIOUS AGGREGATES, SILICA- LIME BOND, AND SYNTHETIC-RESIN CONCRETES. THE MEANS BY WHICH TRIAXIAL STRESS MAY BE INDUCED IN CONCRETE ARE DISCUSSED. METHODS FOR PRODUCTION OF ULTRA HIGH STRENGTH ARE REVIEWED. THE FOLLOWING APPLICATIONS ARE SUGGESTED WHERE AN INCREASE IN STRENGTH WOULD GIVE ADVANTAGE' /1/ THE EXTENSION OF USEFUL SPAN OF CERTAIN EXISTING TYPES OF BEAM, /2/ TRIANGULATED STRUCTURES FOR LARGE SPANS INCORPORATING TUBULAR MEMBERS, /3/ THE MANUFACTURE OF RODS OF PRESTRESSED CONCRETE FOR USE AS REINFORCEMENT, AND /4/ IN SIMPLE COMPRESSION MEMBERS.