Determining the rational compositions of low-strength concretes
Eastern-European Journal of Enterprise Technologies, 2019 The paper reports regularities in the influence of the amount of waste from iron ore enrichment at a rational composition of grain components on strength of concretes with a minimal cement consumption. Low-strength concretes are used in the non-reinforced structures, so they are not subject to the requirement for the minimal cement consumption in order
Alexsander Shishkin +2 more
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Physico-mechanical properties of polymer concrete containing micro-filler of palm oil fuel ash [PDF]
, 2018 Objective of this study is to present a research conducted on ground (fine) and unground (coarse) POFA in polymer concrete (PC) followed by determination on the physico-mechanical properties of PC.
A. Hamid, Noor Azlina +8 more
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Sulfate Resistance of Alkali Activated Pozzolans [PDF]
, 2015 The consequence of sulfate attack on geopolymer concrete, made from an alkali activated natural pozzolan (AANP) has been studied in this paper. Changes in the compressive strength, expansion and capillary water absorption of specimens have been ...
Bondar, Dali
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The properties of recycled rubber from waste tires in the production of cement composites [PDF]
, 2020 This article presents the results of a study dealing with the use of a combination of recycled rubber from waste tires as a 100% substitute in the production of cement composites.
Charvát, Jakub +5 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
doaj +1 more source
Determination of the bilinear stress-crack opening curve for normal- and high-strength concrete [PDF]
, 2008 An improved version of the method proposed to ACI committee 446 and to RILEM TC 187-SOC to determine the fracture parameters of concrete is applied in this study to several mixtures of normal and high-strength concretes.
Fathy Abdelaziz, Adel Mohamed +3 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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New modification of the hestenes-stiefel with strong wolfe line search [PDF]
, 2021 . The method of the nonlinear conjugate gradient is widely used in solving large-scale unconstrained optimization since been proven in solving optimization problems without using large memory storage.
Basri, Srimazzura +2 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
doaj
Development of data optimization methodology for non-destructive testing of concrete strength by the parameters of the electric response to impact excitation [PDF]
, 2016 The paper presents the research results by the improvement of the non-destructive testing method of concrete strength by the parameters of the electric response to impact excitation.
Fursa, Tatyana Viktorovna +2 more
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