Results 11 to 20 of about 408,717 (355)

Compressive Strength Forecasting of Air-Entrained Rubberized Concrete during the Hardening Process Utilizing Elastic Wave Method

open access: yesCrystals, 2020
Conventional compressive strength test of concrete involves the destruction of concrete samples or existing structures. Thus, the focus of this research is to ascertain a more effective method to assess the compressive strength of concrete, especially ...
Zhi Heng Lim   +5 more
doaj   +1 more source

The Strength of Snow in Compression [PDF]

open access: yesJournal of Glaciology, 1956
AbstractThe hardness observations taken in the Canadian Snow Survey are analysed and found to depend on snow density, temperature, and crystal size. This strength property of the snow is found to be highly variable and the variability is attributed to unstable bonding between individual snow grains.
openaire   +3 more sources

Influence of Curing Age and Mix Composition on Compressive Strength of Volcanic Ash Blended Cement Laterized Concrete [PDF]

open access: yes, 2012
This study investigates the influence of curing age and mix proportions on the compressive strength of volcanic ash (VA) blended cement laterized concrete. A total of 288 cubes of 100mm dimensions were cast and cured in water for 3, 7, 28, 56, 90 and 120
Babafemi, A. J   +2 more
core   +2 more sources

Dosage effect of superplasticizer on self-compacting concrete: correlation between rheology and strength

open access: yesJournal of Materials Research and Technology, 2019
This study presents the relationship between the rheology and the compressive strength of self-compacting concrete (SCC). The concrete mixes contained eight different dosages of superplasticizer.
M. Benaicha   +3 more
doaj   +1 more source

Fitting Model to Compressive Strength of Composite Laminate After Impact

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Carbon fiber-reinforced epoxy composites are widely used in the primary structure of aircraft, the compressive strength of which after impact is an important part in the evaluation of damage tolerance.
GUAN Qingyu, XIA Pinqi, ZHENG Xiaoling, WU Guanghui
doaj   +1 more source

Apparatus for measuring strength in biaxial compression

open access: yesReview of Scientific Instruments, 2022
Most measurements of compressive strength of ductile materials have involved Hopkinson–Kolsky bars or Taylor anvils placing samples in uniaxial compression. In these geometries, strain is limited by the tendency of the sample to petal, in analogy to necking in uniaxial tension.
J. L. Belof, J. I. Katz
openaire   +3 more sources

Evaluating the Effects of Steel Fibers on Mechanical Properties of Ultra-High Performance Concrete Using Artificial Neural Networks

open access: yesApplied Sciences, 2018
Steel fibers enhance the flexural strength, the compressive strength and the ductility of untra-high performance concrete, predicting the flexural strength and the compressive strength of ultra-high performance steel fiber reinforced concrete (UHPFRC ...
Dechao Qu, Xiaoping Cai, Wei Chang
doaj   +1 more source

Study on Mechanical Properties of Modified Polyurethane Concrete at Different Temperatures

open access: yesApplied Sciences, 2022
The objective of the present research was to study the effect of temperature on the mechanical properties, failure mode and uniaxial compression constitutive relationship of a modified polyurethane concrete. A total of 24 cube and 27 prism specimens were
Jianhua Lei   +4 more
doaj   +1 more source

Lightweight cementitious composites containing cenospheres and polypropylene fibres after exposure to high temperatures [PDF]

open access: yesMATEC Web of Conferences, 2020
The paper presents the results of experimental investigation of lightweight cementitious composites with cenospheres (LCCC) exposed to high temperatures. We showed the positive effect of cenospheres on post- fire residual compressive strength in previous
Szymkuć Wojciech, Tokłowicz Piotr
doaj   +1 more source

Compressive Strength of Volcanic Ash/Ordinary Portland Cement Laterized Concrete [PDF]

open access: yes, 2010
This study investigates the effect of partial replacement of cement with volcanic ash (VA) on the compressive strength of laterized concrete. A total of 192 cubes of 150mm dimensions were cast and cured in water for 7, 14, 21, and 28 days of hydration ...
Olawuyi, B. J, Olusola, K. O
core   +2 more sources

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