Results 171 to 180 of about 368,975 (216)
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Improving the accuracy of the mechanoelectric method for determining the strength of concrete
Russian Journal of Nondestructive Testing, 2012A technique for nondestructive testing of concrete strength according to parameters of an electric response to an elastic impact excitation was developed on the basis of experimental investigations. The technique allows the testing of concrete with a high surface roughness, including conditions under which concrete is exposed to external ...
T. V. Fursa, K. Yu. Osipov
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Procedure for the Statistical Determination of the Design FRP-Confined Concrete Strength
2011Worldwide research has now reached a level of integration where an effort towards the harmonization of procedures is absolutely needed. Such harmonization may regard, for example, the various steps that lead to the definition of capacity models to be included in design codes, specifically: definition of the test setup, quantities to be measured ...
MONTI, Giorgio +4 more
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The Experimental Determination of One-Axial Tensile Strength of the Textile Reinforced Concrete
Applied Mechanics and Materials, 2016This article deals with experimental testing of the textile reinforced concrete samples. The main topic of this article is determination ultimate tensile strength of the textile reinforced concrete. The testing samples were in form “dogbone” for good fixing in testing machine. There are 12 samples totally in experimental program. One type cement matrix
Filip Vogel +2 more
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Sample size for determining the in situ strength of concrete
2023Abstract One of the most important tasks in the appraisal of an existing concrete structure is to establish the characteristic in situ strength to be adopted for checking the structural adequacy of the existing structure for its intended usage.
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Determining the coefficient of concrete strength variation during non-destructive testing
Structural Concrete, 2006All non-destructive methods for concrete strength control are indirect methods, which is why concrete strength on each specific area is determined with some error. In this paper, probably for the first time, a method to account for this error is presented. Theoretical grounds for the method and its experimental confirmation are also presented.
V. Klevtsov, M. Korevitskaya
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2013
Using research that is now several decades old, the current Canadian masonry design standard, CSA S304.1-04, prescribes values for masonry design compressive strength based on the compressive strength of the concrete masonry unit and the type of mortar used in construction.
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Using research that is now several decades old, the current Canadian masonry design standard, CSA S304.1-04, prescribes values for masonry design compressive strength based on the compressive strength of the concrete masonry unit and the type of mortar used in construction.
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Problems associated with determining the tensile strength of concrete
1967This paper critically examines the various direct and indirect methods for determining the tensile strength of concrete. The direct methods considered are the classical uniaxial tension tests, the modified direct tension test due to Todd, and the very recent methods in which thick steel plates are glued by means of epoxies to the ends of concrete ...
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Accelerated test for determining the 28-day compressive strength of concrete
1964This report presents the results of accelerated curing of concrete test cylinders using a boiling-water method. Briefly, the method consists of standard moist-curing of test specimens for 24 hours, followed by boiling for 3 1/2 hours and testing for compression one hour later.
V M Malhotra, N G Zoldners, R Lapinas
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Journal of Testing and Evaluation, 2018
Abstract There is renewed interest in North America for the use of calcium aluminate cement (CAC) in infrastructure repair because of its ability to gain strength rapidly even at low temperatures, the ability to customize its fresh workability, and its durability in adverse environments.
Matthew P. Adams +3 more
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Abstract There is renewed interest in North America for the use of calcium aluminate cement (CAC) in infrastructure repair because of its ability to gain strength rapidly even at low temperatures, the ability to customize its fresh workability, and its durability in adverse environments.
Matthew P. Adams +3 more
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Evaluation of the pull-out test to determine strength of in-situ concrete
Matériaux et Constructions, 1975A degree of correlation exists between compressive strength of 6×12-in (15×30-cm) concrete cylinders cured under standard conditions and pull-out strength of concrete cured under field conditions.
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