Results 291 to 300 of about 487,325 (332)

Torsional Strengthening Of Normal Weight Concrete And Light Weight Concrete Using Steel Fibres

Materials Today: Proceedings, 2017
Abstract Forces that twist a member about a longitudinal axis are called torsional loads. Modern day structures using conventional concrete which are tall and aesthetically pleasing is in need of torsional strengthening. In this study, torsional behaviour of normal weight concrete (NWC) and light weight concrete (LWC) is analysed.
Anto George, A. Sofi
exaly   +2 more sources

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
exaly   +2 more sources

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.
Waiching Tang, Abid Nadeem
exaly   +2 more sources

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 Pétrou
exaly   +2 more sources

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

Microstructure investigation of the interface between lightweight concrete and normal-weight concrete

Materials Today Communications, 2019
Abstract Lightweight concrete (LWC) and normal weight concrete (NWC) are used in combination in structural engineering practice. Introduction of LWC brings advantages in terms of energy efficiency and reduction of costs. The mechanical properties of the interfacial transition zone (ITZ) between LWC and NWC has a crucial effect on the durability of ...
Huang H., Yuan Y., Zhang W., Liu B., Viani A., Macova P.   +5 more
openaire   +2 more sources