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Multiscale mechanisms of green concrete regulated by silicon-to-calcium ratio: Physico-mechanical properties, hydration structure, and durability performance. [PDF]

PLoS One
Lou J, Liang Y, Zha W, Su Q.
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Anisotropic Concrete Compressive Strength

IABSE Reports, 2017
<p>When the load carrying capacity of existing concrete structures is (re-)assessed it is often based on compressive strength of cores drilled out from the structure. Existing studies show that the core compressive strength is anisotropic; i.e.
Søren Gustenhof Hansen, Henrik Brøne Jørgensen, Linh Ca Hoang   +2 more
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Relationship between the Compressive Strength of Concrete Masonry and the Compressive Strength of Concrete Masonry Units

Journal of Materials in Civil Engineering, 2015
AbstractThe results of axial compression tests on masonry prisms can be the basis for determining the design capacity of masonry elements since several building codes permit the compressive strengt...
Ernesto S. Fortes, Guilherme A. Parsekian, Fernando S. Fonseca   +2 more
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Compressive strength model for concrete

Magazine of Concrete Research, 2013
A predictive compressive strength model accounting for the type of cement, cement degree of hydration, aggregates type and gradation, mixtures proportion and air content was developed. This paper presents the formulation, implementation, calibration and validation of the proposed strength model for normal concrete.
Samir E. Chidiac, Fayez Moutassem, Fathollah Mahmoodzadeh   +2 more
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Compressive strength of heated high-strength concrete

Magazine of Concrete Research, 2007
The present study is aimed to study the effect of elevated temperatures ranging from 50 to 250°C on the compressive strength of high-strength concrete (HSC) of M60 grade made with ordinary portland cement (OPC) and pozzolona Portland cement (PPC). Tests were conducted on 100 mm cube specimens. The specimens were heated to different temperatures of 50,
M. Potha Raju, K. Srinivasa Rao, P. S. N. Raju   +2 more
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Effect of electrolysis on the compressive strength of cement and concrete

Proceedings of the American Institute of Electrical Engineers, 1914
A paper on ``The Electrolytic Corrosion of Reinforced Concrete'', by C.E. Magnusson and G. H. Smith, was read before the A. I. E. E. June 30, 1911, and, as stated in that paper, the results could not be pronounced entirely conclusive, as the duration of the experiments was only 30 days.
C. Edward Magnusson, B. Izhuroff
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Anisotropic Concrete Compressive Strength in Existing Structures

IABSE Reports, 2019
<p>Assessment of the load‐carrying capacity of existing concrete structures is often based on the concrete compressive strength obtained from drilled cores. These cores are typically drilled perpendicular to the concrete surface, under the assumption that the mechanical properties of the concrete are isotropic.
Hansen, S.G., Meinen, N.E., Jørgensen, H.B.   +2 more
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Nature of compression strength in concrete

Magazine of Concrete Research, 1992
A compression strength theory for concrete based on the capillary porosity of binder paste in concrete and the intrinsic tensional strength of the CSH gel is presented. The capillary pores were modelled as spheres of equal radius and the tensional stress peak on the surface of the voids was calculated using a FEM program.
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On compressive strength variation in concrete

Matériaux et Constructions, 1971
The interrelationship of the standard deviation, the coefficient of variation, and the compressive strength of concrete was studied on 32 building sites and 14 ready-mix plants, with more than 30,000 observations analysed. While the standard deviation was found to be practically strength-independent when overall values were considered, the coefficient ...
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Compressive strength and modulus of elasticity of freshly compressed concrete

Construction and Building Materials, 2012
Abstract This paper is going to offer an interesting solution to enhance the compressive behavior of concrete in terms of strength and modulus of elasticity. In the presented method, by compressing the fresh concrete in a fabricated pressure apparatus, the excess water of concrete is expelled and the percent void is remarkably decreased.
M. Nematzadeh, M. Naghipour
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