Results 121 to 130 of about 29,747 (155)

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
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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 ...
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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
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Shear Strength of Stud Connectors in Lightweight and Normal-Weight Concrete

Engineering Journal, 1971
Steel-concrete composite construction using normal weight concrete has been used since early in the 1920s. Substantial use of composite construction began mainly for bridge structures in the 1950s as a result of the work done by Viest. Its primary growth in building construction during the last decade was a result of the simplified design provisions ...
Jorgen G. Ollgaard, Roger G. Slutter, John W. Fisher   +2 more
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Determining the Static and Dynamic Properties of Hardened Normal Weight and Heavy Weight Concrete

Cement, Concrete, and Aggregates, 1986
Abstract This paper describes a method for determining the material constants of normal weight and heavy weight concrete under static and dynamic loading at 7, 28, and 90 days. The tests were conducted at the University of California, Structures and Materials Laboratory, Berkeley, CA, for comparing the compressive strength, modulus of ...
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Experimental investigation of the optimized use of plastic flakes in normal-weight concrete

Magazine of Concrete Research, 1999
The potentially influential variables in normal-weight concrete incorporating recycled plastic flakes (recycled plastic content and width of recycled plastic particles) have been investigated. The addition of recyled plastics to concrete was found to help control the drying-shrinkage cracks.
P. Soroushian, A. I. Eldarwish, A. Tlili, K. Ostowari   +3 more
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AN IMPROVED ANALYTICAL CONSTITUTIVE RELATION FOR NORMAL WEIGHT HIGH-STRENGTH CONCRETE

International Journal of Modern Physics B, 2008
In this paper, some available analytical models for the complete stress-strain curve for high-strength concrete (HSC) under uniaxial compression are examined and compared with experimental curves published in the literature. Based on these findings, a new analytical constitutive relation is proposed to generate the complete stress-strain curves for ...
Z. H. LU, Y. G. ZHAO
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Gamma Radiation Effect on Normal Weight Concrete, Heavy Weight Concrete, Steel Bars, and Fiber Bars

Egyptian Journal of Chemistry, 2023
Mahmoud El-Desouky, Ahmed Abdelaziz, Mahmoud El-Fransawy, Rasha El-Sadany   +3 more
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Numerical fire resistance testing of lightweight concrete and normal weight concrete elements

1997
This paper presents a numerical fire resistance testing of completely reinforced lightweight concrete and reinforced normal weight concrete structural members. The fire action is applied in accordance to normalized ISO-834 diagram. Thermal and mechanical properties of steel, lightweight concrete and normal weight concrete are linear for each level of ...
Mihanović, Ante, Marović, Pavao, Trogrlić, Boris   +2 more
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ON THE STRENGTH OF NORMAL WEIGHT CONCRETES IN BIAXIAL COMPRESSION

Вестник Брестского государственного технического университета
В статье приводятся результаты исследования изменения прочности бетонов нормального веса при двухосном сжатии по результатам моделирования, а также выполнено сравнение с экспериментальными данными и теоретическими исследованиями других авторов. Несмотря на большое количество имеющегося экспериментального и теоретического материалов, вопрос прочности ...
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