Results 261 to 270 of about 7,212 (303)

Penetrability of lightweight aggregate concrete

Magazine of Concrete Research, 2010
In this paper, a study was conducted on the parameters affecting the sorption of water, chloride ingress and permeability of water into lightweight aggregate concrete. The parameters being studied are the effects of the water-to-cement (w/c) ratio, aggregate type, initial moisture content of the lightweight aggregate, size of the lightweight aggregate,
Emiko, L., Wee, T.H., Tamilselvan, T.
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Surface Modification of Lightweight Aggregate and Properties of the Lightweight Aggregate Concrete

2008
Structural 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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Structural Lightweight Aggregate Concrete

1998
Unless special exceptions are made, the entire Code is applicable to lightweight aggregate concrete. The principal exceptions and special provisions for lightweight aggregate concrete are discussed and illustrated in the following section.
Edward S. Hoffman, David P. Gustafson, Albert J. Gouwens   +2 more
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Bond strength of polymer lightweight aggregate concrete

Polymer Composites, 2013
Bond strength, physical, and mechanical properties of lightweight PC were investigated with inclusion of pumice lightweight aggregate in maximum size of 12 mm. As binder material, epoxy resin‐based polymer was used with its hardener. The binder to aggregate ratio was 30% by weight.
Uygunoglu, Tayfun, Brostow, Witold, Gençel, Osman, Topcu, Ilker Bekir, Gençel, Osman   +4 more
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Reactive powder concrete with lightweight aggregates

Construction and Building Materials, 2020
Abstract The paper presents test results of lightweight concretes obtained by introduction of lightweight aggregates: Pollytag, expanded clay aggregate and expanded polystyrene beads (EPS) in quantity from 30 vol% to 60 vol% to the RPC mix. It was demonstrated that addition of the expanded clay aggregate allowed to obtain lightweight RPC with the ...
Stefania Grzeszczyk, Grzegorz Janus
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Performance of Lightweight Concrete With Plastic Aggregate

International Journal of Multidisciplinary Engineering in Current Research, 2020
This study explores the use of recycled high-density polyethylene (HDPE) plastic and robo sand to fabricate lightweight plastic coarse aggregates (PCA) for concrete. These PCAs were produced by melting HDPE plastic and mixing it with robo sand in a 1:3 ratio, forming aggregates sized 2.36 mm to 20 mm.
Shaik Naseeruddin, Khaja Basithuddin, Ms. K. Nanchari   +2 more
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Structural Lightweight Aggregate Concrete

1993
Lightweight aggregates for structural concrete - P L Owens. Introduction, definitions and limitations. Lightweight aggregates suitable for use in structural concrete. Brief history of lightweight aggregate production. Manufacturing considerations for structural grades of lightweight aggregate. Lightweight aggregates availaible in the UK.
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Durability of lightweight concretes with lightweight fly ash aggregates

Construction and Building Materials, 2011
Abstract 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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Durabilities of Lightweight Aggregate Concrete and Natural Aggregate Concrete

Journal of the Korea Concrete Institute, 2021
Cho-Bum Park, Yong-Hyok Kim, Yu-Bin Jun, Jae Hong Kim, Deug-Hyun Ryu   +4 more
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EFFECTS OF LIGHTWEIGHT AGGREGATES ON AUTOGENOUS DEFORMATION IN CONCRETE

2007
To reduce autogenous deformations in high performance concrete at early ages, dispersed saturated lightweight aggregates (LWAs) are used as water reservoirs. For this purpose, in a concrete with low water cement ratio, normal aggregates have been replaced by natural LWAs at size fractions of 2-4mm or 4-8mm at three different volume fractions such as 10,
AKÇAY ALDANMAZ, BURCU, TAŞDEMİR, Mehmet Ali   +1 more
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