Results 211 to 220 of about 8,131 (259)
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Construction and Building Materials, 2012
Abstract The influence of volume fraction and aggregate properties on the mechanical performance of lightweight aggregate concrete (LWAC) were studied. A new Shape Index that described the shape characteristics of lightweight aggregate (LWA) has been proposed and its effects on resulting LWAC were evaluated.
H.Z. Cui +3 more
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Abstract The influence of volume fraction and aggregate properties on the mechanical performance of lightweight aggregate concrete (LWAC) were studied. A new Shape Index that described the shape characteristics of lightweight aggregate (LWA) has been proposed and its effects on resulting LWAC were evaluated.
H.Z. Cui +3 more
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Surface Modification of Lightweight Aggregate and Properties of the Lightweight Aggregate Concrete
2008Structural lightweight aggregate concrete (LWAC) offers design flexibility and substantial cost savings by providing less dead load [1]. Because of higher water absorption of lightweight aggregate (LWA), process of mixing LWAC is more complex than that of normal weight concrete (NWC).
T. Y. Lo, H. Z. Cui
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Computers and Concrete, 2017
This study aimed at exploring the effect of presoaking degree of lightweight aggregate (LWA) on the fresh and hardened properties of concrete. Two series (i.e., Series A and Series B) of concrete mixes that were made of LWA with different moisture states were prepared.
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This study aimed at exploring the effect of presoaking degree of lightweight aggregate (LWA) on the fresh and hardened properties of concrete. Two series (i.e., Series A and Series B) of concrete mixes that were made of LWA with different moisture states were prepared.
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Recycling of harbor sediment as lightweight aggregate
Marine Pollution Bulletin, 2008Sediment sampled from Taichung Harbor was mixed with local reservoir sediment at different weight ratios to prepare lightweight aggregate at 1050, 1100, and 1150 degrees C. A pressure of 3000 or 5000 psi was used to shape the powder mixtures into pellets before the heating processes.
Yu-Ling, Wei +4 more
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International Journal of Cement Composites and Lightweight Concrete, 1980
In order to reduce the density of concrete for load bearing and stiffening structural members and to improve the thermal insulation properties and thus extend the scope of application for structural lightweight concrete, closed-texture lightweight concretes are required which, while possessing adequate compressive strength, have densities of less than ...
Helmut Weigler, Sieghart Karl
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In order to reduce the density of concrete for load bearing and stiffening structural members and to improve the thermal insulation properties and thus extend the scope of application for structural lightweight concrete, closed-texture lightweight concretes are required which, while possessing adequate compressive strength, have densities of less than ...
Helmut Weigler, Sieghart Karl
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Lightweight aggregates in the U.K.
International Journal of Cement Composites and Lightweight Concrete, 1979Abstract Whilst lightweight aggregates have been used for many years, the development of high quality manufactured lightweight aggregates has been slow due in no small part to the attitude of the producers of the industrial wastes which form the raw materials for much of the modern lightweight aggregate production. This paper gives a brief situation
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Construction and Building Materials, 2014
Abstract Particle characteristics of lightweight aggregates (LWAs) have great influences on the mechanical performance of the corresponding concrete. In this research, particle characteristics of LWAs were measured through digital image processing (DIP), including particle sizes, gradation and shape properties, and the effects of LWA particle ...
Yan He +3 more
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Abstract Particle characteristics of lightweight aggregates (LWAs) have great influences on the mechanical performance of the corresponding concrete. In this research, particle characteristics of LWAs were measured through digital image processing (DIP), including particle sizes, gradation and shape properties, and the effects of LWA particle ...
Yan He +3 more
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Applied Mechanics and Materials, 2015
Structural lightweight aggregate concrete offers several benefits as compared to the normal weight concrete. Most common methods of producing structural lightweight concrete is by using artificial lightweight aggregates. However, the cost of the production of artificial lightweight aggregates is high due to energy and raw materials consumption. The use
Muhammad Aslam +2 more
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Structural lightweight aggregate concrete offers several benefits as compared to the normal weight concrete. Most common methods of producing structural lightweight concrete is by using artificial lightweight aggregates. However, the cost of the production of artificial lightweight aggregates is high due to energy and raw materials consumption. The use
Muhammad Aslam +2 more
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Pelletisation of fly ashes as a lightweight aggregate
Advances in Cement Research, 2010This study investigated the use of solid waste fly ash in the production of lightweight concrete. Fly ash is an industrial waste obtained from the coal-fired thermal generating power plant and it is used in the production of additive construction materials. In Turkey more than 15 million tonnes of fly ash is produced each year, but only a small amount
Pişkin, Sabriye +3 more
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Durability of lightweight concretes with lightweight fly ash aggregates
Construction and Building Materials, 2011Abstract This paper presents the effects of aggregate properties such as strength, porosity, water absorption, bulk density and specific gravity on the strength and durability of lightweight fly ash aggregate concrete (LWAC). The influence of properties of four aggregates (sintered lightweight fly ash aggregates, cold-bonded lightweight fly ash ...
Niyazi Ugur Kockal, Turan Ozturan
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