Results 21 to 30 of about 3,514,032 (266)

The Effect of Rebar Embedment and CFRP Confinement on the Compressive Strength of Low-Strength Concrete

International Journal of Concrete Structures and Materials, 2022
Low-strength concrete (LSC) elements are prone to several seismic and static loads and are one of the priorities to be considered for FRP strengthening.
Nima Hashemi, Sina Hassanpour, Asghar Vatani Oskoei   +2 more
doaj   +1 more source

A Sensitivity and Robustness Analysis of GPR and ANN for High-Performance Concrete Compressive Strength Prediction Using a Monte Carlo Simulation

Sustainability, 2020
This study aims to analyze the sensitivity and robustness of two Artificial Intelligence (AI) techniques, namely Gaussian Process Regression (GPR) with five different kernels (Matern32, Matern52, Exponential, Squared Exponential, and Rational Quadratic ...
D. Dao, H. Adeli, H. Ly, Lu Minh Le, Vuong Minh Le, Tien-Thinh Le, B. Pham   +6 more
semanticscholar   +1 more source

The Effect of Capping Condition on the Compressive Strength of Concrete Hollow Blocks [PDF]

مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2003
One of the quality control tests done on the concrete hollow blocks is the compressive strength. In order to simulate in situ strength of the concrete blocks, capping technique was used in order to achieve smooth perpendicular surface for compressive ...
Osama A. Abaza, Ameed Abu Salameh
doaj   +1 more source

The impact of water content and ionic diffusion on the uniaxial compressive strength of shale

Egyptian Journal of Petroleum, 2013
Experimental data showed that water content has a profound influence on the uniaxial compressive strength of shale. Testing has shown a great decrease in the uniaxial compressive strength as the water content increases.
Talal AL-Bazali
doaj   +1 more source

Adapting Artificial Intelligence to Improve In Situ Concrete Compressive Strength Estimations in Rebound Hammer Tests

Frontiers in Materials, 2020
Compressive strength is probably one the most crucial properties of concrete material. For existing structures, core samples are drilled and tested to obtain the concrete compressive strength.
Yu Ren Wang, Yen Ling Lu, Dai Lun Chiang
doaj   +1 more source

Compressive strength prediction model of lightweight high-strength concrete

Magazine of Civil Engineering, 2022
A reasonable prediction of the compressive strength of lightweight high-strength concrete is an important basis for determining concrete strength. Through cluster analysis, the key factors affecting the compressive strength of lightweight high-strength ...
Zhang Lina, He Dongpo, Xu Wenyuan, Zhao Qianqian, Teng Shubin   +4 more
doaj   +1 more source

A New Insight into the Design Compressive Strength of Ultra-High Performance Concrete

Buildings, 2023
Compressive strength is one of the most critical mechanical properties of various types of concrete and is the main input variable for structural concrete design.
Masoud Pourbaba, Rajesh Chakraborty, Majid Pourbaba, Abdeldjelil Belarbi, Jung Heum Yeon   +4 more
doaj   +1 more source

Effect of work-hardening on the relationship between compressive strength and hardness of quenched medium carbon steel

Nihon Kikai Gakkai ronbunshu
Since it is known that tensile strength and hardness are roughly proportional, a hardness test is often used as a simple and substitute test. However, it has been reported that the proportional relationship between tensile strength and hardness is broken
Yuta MIZUNO, Masayoshi KUMAGAI, Akihiro TANABE, Junzo SHIMBE   +3 more
doaj   +1 more source

Machine learning based strength prediction method for cement-based grouting material [PDF]

Journal of Hebei University of Science and Technology
In order to accurately predict the compressive strength of cement-based grouting material by small diameter core sample method, the compressive strength tests of cement-based grouting material standard size test blocks and small diameter core samples ...
Qilian LI, Jiayao CHEN, Yanru DUN, Xianfeng CAO, Yi LIU   +4 more
doaj   +1 more source

Effect of Wax Burn-Out Heating Temperature on The Compressive Strength of Casting Dental Alloy Investment [PDF]

Al-Rafidain Dental Journal, 2008
Aims: To evaluate the effect of the burn-out heating on the compressive strength of investment materials. Materials and Methods: Three commercial investment materials were used in this study.
Lamia T Rejab
doaj   +1 more source