Results 111 to 120 of about 80,795 (166)
Some of the next articles are maybe not open access.
1979
The application of Griffith’s theory to explain failure in hardened cement paste is discussed in Chapter 4. Failure due to external loading is brought about by the spontaneous growth of the critical crack when the strain energy release rate equals the maximum rate of energy requirement. At this point the rate of energy release is known as the ‘critical
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The application of Griffith’s theory to explain failure in hardened cement paste is discussed in Chapter 4. Failure due to external loading is brought about by the spontaneous growth of the critical crack when the strain energy release rate equals the maximum rate of energy requirement. At this point the rate of energy release is known as the ‘critical
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Strength Criteria for Concrete
1986A new proposed third order polynomial strength criterion, based on tensorial function theory of continuum mechanics, has been used to determine the strength parameters for concrete. A straight-forward computer program to determine the parameters and plot the strength envelope has been developed.
C. L. D. Huang, Cui Lei
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PCI Journal, 1967
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.
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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.
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Initial strength of graded concrete beams on varying concrete strength
AIP Conference Proceedings, 2022Ziana Nur Afdila +2 more
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High strength concrete for prestressed concrete girders
1991This paper illustrates that the use of high strength concrete allows increasing the span of prestressed girders with given cross section. It is also indicated that for a given span length, girder spacing can be significantly increased. These benefits are demonstrated by means of numerical examples, which give formulae to calculate the maximum span ...
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Concrete Strength in Structures
ACI Journal Proceedings, 1968THE SIGNIFICANCE OF CONCRETE COMPRESSIVE STRENGTH MEASUREMENT BY VARIOUS METHODS WAS INVESTIGATED. PAIRS OF SLABS FROM THREE CONCRETES WERE SUBJECTED TO GOOD AND POOR CURING. CORES AND PUSH-OUT CYLINDERS WERE REMOVED AT SIX STAGES UP TO 1 YEAR AND TESTED FOR STRENGTH. CORRESPONDING TESTS OF MOLDED CYLINDERS BROUGHT THE TOTAL SPECIMENS TO 216 CORES, 216
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Strength of Retempered Concrete
ACI Materials Journal, 1993A relationship is proposed for the strength of retempered concrete. This relationship is an empirical one and is obtained from an analysis of published data of retempered concrete avilable from experimental studies conducted by a number of researchers.
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Concrete-to-concrete bond Strength: A review
Construction and Building Materials, 2023M. EL Afandi +4 more
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Alloy design strategies to increase strength and its trade-offs together
Progress in Materials Science, 2021Seung Zeon Han, Eun-Ae Choi
exaly