Results 21 to 30 of about 3,010,294 (345)

Effect of Single and Synergistic Reinforcement of PVA Fiber and Nano-SiO2 on Workability and Compressive Strength of Geopolymer Composites

Polymers, 2022
Geopolymer composites can be used as a proper substitute for ordinary Portland cement, which can reduce carbon dioxide (CO2) emissions and make rational use of industrial waste.
Peng Zhang, S. Wei, Yuanxun Zheng, Fei Wang, Shaowei Hu   +4 more
semanticscholar   +1 more source

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

Crystals, 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, Foo Wei Lee, Kim Hung Mo, Jee Hock Lim, Ming Kun Yew, Kok Zee Kwong   +5 more
doaj   +1 more source

Fitting Model to Compressive Strength of Composite Laminate After Impact

Shanghai 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

Compressive Strength of Sustainable Geopolymer Concrete Composites: A State-of-the-Art Review

Sustainability, 2021
The building industry, which emits a significant quantity of greenhouse gases, is under tremendous pressure due to global climate change and its consequences for communities.
H. Ahmed, A. Mohammed, S. Rafiq, A. Mohammed, Amir Mosavi, Nadhim Hamah Sor, Shaker Qaidi   +6 more
semanticscholar   +1 more source

The Strength of Snow in Compression [PDF]

Journal 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

Apparatus for measuring strength in biaxial compression

Review 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

Compressive Strength of Fly-Ash-Based Geopolymer Concrete by Gene Expression Programming and Random Forest

Advance in Civil Engineering, 2021
Fly ash (FA) is a residual from thermal industries that has been effectively utilized in the production of FA-based geopolymer concrete (FGPC). To avoid time-consuming and costly experimental procedures, soft computing techniques, namely, random forest ...
M. Khan, S. Memon, Furqan Farooq, M. Javed, Fahid Aslam, Rayed Alyousef   +5 more
semanticscholar   +1 more source

Comparative Study of Supervised Machine Learning Algorithms for Predicting the Compressive Strength of Concrete at High Temperature

Materials, 2021
High temperature severely affects the nature of the ingredients used to produce concrete, which in turn reduces the strength properties of the concrete.
Ayaz Ahmad, K. Ostrowski, M. Maślak, Furqan Farooq, Imran Mehmood, Afnan Nafees   +5 more
semanticscholar   +1 more source

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

Applied 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

Correlation Analysis of Porosity and Uniaxial Compressive Strength of Jurassic Frozen Sandstone

Meikuang Anquan, 2020
To study the relationship between rock porosity and uniaxial compressive strength under freezing conditions, NMR and uniaxial compression tests were performed on Jurassic saturated aquifer sandstone under artificial freezing conditions.
HUANG Zhaomei, CAO Guangyong, CHENG Hua, MA Maoyan, HUANG Yishun
doaj   +1 more source