Evaluation of artificial neural network, neuro-fuzzy and multivariate regression modelling for prediction of concrete compressive strength via point load test [PDF]
مجله مدل سازی در مهندسی, 2020 Nowadays, the determination of in place concrete strength is more considered. The necessity of in situ testing can be expressed in a variety of applications such as structural change or development, quality control, strength evaluation and concrete ...
meysam effati +2 more
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Determining the rational compositions of low-strength concretes
Eastern-European Journal of Enterprise Technologies, 2019 В роботі визначено закономірності впливу кількості відходів збагачення залізних руд при раціональному зерновому складі компонентів на міцність бетонів з мінімальною витратою цементу. Бетони, які мають малу міцність, застосовуються в неармованих конструкціях, тому на них не поширюється вимога до мінімальної витрати цементу для забезпечення захисту ...
Alexsander Shishkin +2 more
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Determination of pervious concrete mix by strength
IOP Conference Series: Materials Science and Engineering, 2020 Abstract The paper first used a cement amount C=300 kg and a range of water-cement ratio W/C=0.36∼0.44 to make pervious concrete specimens of different W/C to perform the compressive strength and the flexural strength tests, as well as the permeability coefficient and the porosity tests.
Bo-Syun Huang +3 more
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Comparative evaluation regarding the efficiency of the methodologies used for determining the compressive strength of concrete: standard (destructive) method vs. non-destructive method [PDF]
Constructii: Journal of Civil Engineering Research, 2019 Determining the concrete compressive strength is an important issue for both existing and new constructions. Existing constructions, subject to retrofit and / or extension, require the determination of concrete compressive strength in specific elements ...
Bogdan BOLBOREA +3 more
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Numerical simulation of the behaviour of the lightweight concrete specimen in the laboratory testing [PDF]
Građevinski Materijali i Konstrukcije, 2019 This paper presents the numerical modelling of the experimental determination of the compressive strength and the static modulus of elasticity of the lightweight concrete using the finite element method (FEM). In the theoretical review, a concrete damage
Živaljević Vladimir +3 more
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New Models for Determining Concrete Elastic Modulus Considering Variation in Values of Compressive Strength [PDF]
پژوهشهای زیرساختهای عمرانی, 2022 Modulus of elasticity has played an essential role in the analysis and design of reinforced concrete structures and is a fundamental property required to calculate the lateral deformation of structures.
Sima Aramesh, Pouyan Fakharian
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Будівельні конструкції. Теорія і практикаThis scientific work is a continuation of studies [1] related to the determination of the class of structural concretes at different mixing times of the concrete mixture.
Олександер Конопляник +1 more
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Theoretical-Experimental Aspects of Determining Concrete Strength
Interdisciplinary Journal of Research and Development, 2022 Concrete strength is the property most valued by designers and quality control engineers. In rigid bodies, there is an inverse relationship between porosity (volume fraction of voids) and strength. Consequently, in multi-stage materials such as concrete, the porosity of each microstructure component can become limiting in durability. Natural aggregates
Indrit Vozga, Vladimir Kasemi
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Damage in Concrete and its Detection by Use of Stress-Volumetric Strain Diagram
Civil and Environmental Engineering, 2014 The reliable determination of the damage degree of concrete in the structure is difficult and not seldom short-term compressive strengths are considered as real strengths of concrete.
Jerga Ján, Krajči Ľudovít
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Determination of stresses in concrete lining with rock-bolt in case of exhaustion of rock-bolt supporting strength [PDF]
MATEC Web of Conferences, 2019 The article deals with the solution of analytical problem of flat axisymmetric elasticity theory, when rock-bolt supporting strength is exhausted. Expression for determination of stresses in concrete lining is deduced, where pressure increasing at ...
Pleshko Marianna, Shornikov Ivan
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