Results 111 to 120 of about 28,127 (160)

Experimental investigation on steel-concrete bond in lightweight and normal weight concrete

Structural Engineering and Mechanics, 2004
The bonding behaviors of Lightweight Aggregate Concrete (LWAC) and normal weight concrete were investigated experimentally. Pull-out tests were carried out to measure the bond strengths of three groups of specimens with compressive strength levels of 60, 40, and 20 MPa, respectively.
How-Ji Chen, Chung-Ho Huang, Zhang-Yu Kao   +2 more
openaire   +1 more source

Experimental and Numerical Characterization of Normal-Weight Concrete at the Mesoscale

Journal of Materials in Civil Engineering, 2022
Modeling the postpeak behavior of brittle materials like concrete remains a challenge from the point of view of computational mechanics due to the strong nonlinearities arising in the material behavior during softening and the complexity of the yield criterion that may describe their deformation capacity under generic triaxial stress states.
Mazzucco G., Pomaro B., Xotta G., Garbin E., Salomoni V., De Marchi N.   +5 more
openaire   +2 more sources

Strength and Durability of Lightweight and Normal Weight Concrete

Journal of Materials in Civil Engineering, 1999
A research project has been undertaken in Kuwait University to investigate the long-term strength development and durability of lightweight aggregate concretes (LWAC's) and a normal weight concrete (NWC) under hot dry and hot humid coastal exposure conditions.
Husain Al-Khaiat, Naseer Haque
openaire   +1 more source

On Static Modulus of Elasticity of Normal‐Weight Concrete

Journal of Structural Engineering, 1989
The modulus of elasticity of concrete is a fundamental parameter in analysis and design of reinforced‐concrete structures. The present ACI approach for Young's modulus is based on normal strength concrete. It may not be appropriate for high‐strength concrete.
T. S. Shih, G. C. Lee, K. C. Chang
openaire   +1 more source

Limit on Strength of Normal Weight Concrete

PCI Journal, 2001
This article points out and emphasizes the fact that no United States code or national standard imposes an upper limit on the strength of normal weight concrete that can be used in construction, including structures built in regions of high seismicity. The 2002 Edition of ACI Building Code Requirements for Strucural Concrete (ACI 318-02) has chosen to ...
openaire   +1 more source

Highly absorptive normal weight aggregates for internal curing of concrete

Construction and Building Materials, 2018
Abstract The objective of this research was to develop an internal curing (IC) approach aiming to reduce early-age shrinkage and maintain the materials properties intact. Attention was given on delivering curing water within the material’s structure using existing constituents of the mixture.
Pericles Savva, Michael F. Petrou
openaire   +1 more source

STUDY OF SHRINKAGE OF CONCRETE USING NORMAL WEIGHT AND LIGHTWEIGHT AGGREGATE

International Journal of Engineering Applied Sciences and Technology, 2021
Drying shrinkage can be a major cause of deterioration of concrete structures. Aggregate sizes, curing period and water-cement ratio imparts a great impact on shrinkage of concrete. This paper represents the observed effects of water-cement ratio, curing period and aggregate sizes on shrinkage of concrete using normal weight and lightweight aggregate ...
Taufiqur Rahaman, Dr. Md. Shafiqul Islam
openaire   +1 more source

Bond strength tests on deformed reinforcement in normal weight concrete

Materials and Structures, 1997
The primary aim of the research which is described in this paper was to investigate the effect of lateral pressure on the bond strength of deformed reinforcement set in normal weight concrete. A large number of tests was undertaken in which the main variables affecting bond strength were investigated.
P. R. Walker, M. K. Batayneh, P. E. Regan   +2 more
openaire   +1 more source

Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels

Construction and Building Materials, 2008
This paper presents a study on accelerated carbonation testing of normal weight concrete (NWC) and lightweight concrete (LWC) mixes proportioned for three levels of strength grades. Two types of curing regimes were applied; (1) hot curing in water at 60 C for 3 days and (2) normal curing in water at 27 C for 28 days.
Lo, T. Y., Tang, W. C., Nadeem, A.
openaire   +1 more source

Bond behavior between lightweight aggregate concrete and normal weight concrete based on splitting-tensile test

Construction and Building Materials, 2019
Abstract Lightweight concrete (LWC) is an advanced concrete with the combined advantage of being both lightweight and high-strength. LWC is an excellent option for decreasing the self-weight of a structure while offering many additional benefits such as the comprehensive utilization of resources and environmental protection by incorporating ...
Hua Huang, Yujie Yuan, Wei Zhang, Zichen Gao   +3 more
openaire   +1 more source