Results 21 to 30 of about 154,207 (310)

Effect of Coarse Aggregate Sizes and Replacement Levels on the Strength of Palm Kernel Shell (PKS) Concrete [PDF]

open access: yes, 2013
The maximum coarse aggregate size used in concrete can impact on its strength. An investigation of the effect of coarse aggregate size and replacement level of granite with palm kernel shell (PKS) on the compressive and tensile strengths of PKS concrete ...
Babafemi, A. J, Olusola, K. O
core   +2 more sources

Response surfaces for compressive strength of concrete

open access: yesConstruction and Building Materials, 2013
The aim of total quality management (TQM) is to offer satisfactorily high quality products to customers for providing increased productivity and decreased costs. Various methods are used for process improvement, development and optimization. In ready mixed concrete production, the number and the variations of effect parameters can be reduced using ...
Cihan, M. Timur   +2 more
openaire   +3 more sources

The Experimental Assessment Of The Effect Of Paper Waste Ash And Silica Fume On Improvement Of Concrete Behavior [PDF]

open access: yesمهندسی عمران شریف, 2021
The idea of using paper wastes in concrete to reduce environmental pollution and Silica fume to improve the properties of concrete is a huge transformation in the building industry.
J. Pourazar   +4 more
doaj   +1 more source

SIZE EFFECT IN COMPRESSIVE STRENGTH OF CONCRETE

open access: yesTransactions of the Architectural Institute of Japan, 1977
Abstract Three series of experiments were carried out to examine the effect of the size and type of aggregate on the size effect in the compressive strength of concrete from the standpoint that it may result from the geometrical heterogeneity of concrete system.
Y. Tanigawa, K. Yamada
openaire   +2 more sources

High-strength concrete eccentrically compressed elements [PDF]

open access: yesE3S Web of Conferences, 2019
The article is devoted to the analysis of technical and economic efficiency of application of high-strength concrete (HSC) in the eccentrically compressed columns. In the first part of the paper, the effect of concrete grade on in-creasing the column stiffness depending on steel ratio at different values of the relative eccentricity is considered ...
Vasilenko Anastasia   +3 more
openaire   +2 more sources

Experimental Study on the Size Effect on the Probability Distribution of Concrete Compressive Strength

open access: yesAdvances in Civil Engineering, 2022
Understanding the size effect on the probability distribution of concrete compressive strength is critical to accurately determining its probability distribution and to correctly calculating reliability.
Youcheng Zhai
doaj   +1 more source

Application of Neural Networks for Estimation of Concrete Strength [PDF]

open access: yes, 2004
The uniaxial compressive strength of concrete is the most widely used criterion in producing concrete. Although testing of the uniaxial compressive strength of concrete specimens is done routinely, it is performed on the 28th day after concrete placement.
Feng, Maria Q.   +3 more
core   +2 more sources

Estimating unconfined compressive strength of foamed concrete using a fractal fragmentation model

open access: yesShuiwen dizhi gongcheng dizhi
Foamed concrete is widely used in construction to reduce structural and foundation loads, thereby improving energy efficiency and lowering construction costs due to its favorable properties.
Bo LIN, Chengjian SHAO, Yongfu XU
doaj   +1 more source

Strength and Quality Assessment of Recycled Aggregate and Crumb Rubber Concrete Using the Ultra Pulse Velocity Method [PDF]

open access: yes, 2020
This study focuses on the strength and quality of concrete incorporated with recycled aggregate and crumb rubber through the compressive strength test and the Ultra Pulse Velocity (UPV) test.
Abdullah, Siti Radziah   +3 more
core  

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

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