Results 11 to 20 of about 8,131 (259)

The Effects of Additives to Lightweight Aggregate on the Mechanical Properties of Structural Lightweight Aggregate Concrete [PDF]

open access: yesCivil and Environmental Engineering Reports, 2021
In the paper, the effects of different percentages of additives (perlite, LECA, pumice) on the mechanical properties of structural lightweight aggregate concrete were tested and evaluated. For the research, 14 mixing designs with different amounts of aggregate, water, and cement were made.
Mehdi Khoshvatan, Majid Pouraminia
openaire   +1 more source

Bibliometric analysis on Characterization of Sustainable lightweight Self Compacting Concrete with Recycled Aggregate [PDF]

open access: yesE3S Web of Conferences
The construction industry produces an enormous quantity of waste that may be recovered and expended as recycled aggregates to replace or supplement natural aggregates.
Renukuntla Anu, Murthi Pa
doaj   +1 more source

MECHANICAL PROPERTIES OF SUSTAINABLE FIBER-REINFORCED LIGHTWEIGHT AGGREGATE CONCRET

open access: yesJournal of Engineering and Sustainable Development, 2023
With the rapid growth of high-rise buildings and large-scale structures, there is a need to preserve natural resources and reduce loads on buildings by using lightweight concrete to achieve better performance for structures.
Wael Jasim Mohammed   +2 more
doaj   +1 more source

Thermal Conductivity of Thermally Insulated Concretes in a Nuclear Safety Vessel of Reactor Vault: Experimental Interpretation

open access: yesAdvances in Materials Science and Engineering, 2022
Thermally insulated concretes are a type of alternative building material that helps improve thermal efficiency in nuclear reactor vault safety vessel applications. The experimental results of thermal conductivity values of lightweight concrete materials
M. Anish   +6 more
doaj   +1 more source

Olive pomace based lightweight concrete, an experimental approach and contribution

open access: yesMATEC Web of Conferences, 2018
Due to conventional aggregates resources depletion, material recycling has become an economic and ecologic alternative. In this paper, locally available natural residues such as olive pomace were investigated, when partially incorporated in the concrete ...
Lynda Amel Chaabane, Rafik Benferrah
doaj   +2 more sources

Performance and Microstructural Analysis of Lightweight Concrete Blended with Nanosilica under Sulfate Attack

open access: yesAdvances in Civil Engineering, 2018
The influence of two lightweight aggregates (LWA) on concrete and the effects of cement substitution for nanosilica (NS) on the interfacial transition zone (ITZ) and cementitious matrix of concrete in resistance to attacks by magnesium sulfate (MgSO4 ...
Paola Vargas   +2 more
doaj   +1 more source

Geopolymer Concrete with Lightweight Artificial Aggregates

open access: yesMaterials, 2022
This article presents the physical and mechanical properties of geopolymer concrete with lightweight artificial aggregate. A research experiment where the influence of fly ash–slag mix (FA-S), as part of a pozzolanic additive, on the properties of geopolymers was carried out and the most favorable molar concentration of sodium hydroxide solution was ...
Katarzyna Kalinowska-Wichrowska   +3 more
openaire   +2 more sources

Quantitative Measurement of Water Absorption of Coarse Lightweight Aggregates in Freshly-Mixed Concrete

open access: yesInternational Journal of Concrete Structures and Materials, 2020
The high water-absorption of lightweight aggregate causes a high slump loss and poor workability of concrete. A prewetting process is usually recommended to compensate for the workability problem, but its application needs more delicate consideration in ...
Yong-Hyok Kim   +5 more
doaj   +1 more source

Lightweight concrete with Algerian limestone dust: Part I: Study on 30% replacement to normal aggregate at early age

open access: yesCerâmica, 2013
The mechanical characteristics of the lightweight aggregate concretes (LWAC) strongly depend on the proportions of aggregates in the formulation. In particular, because of their strong porosity, the lightweight aggregates are much more deformable than ...
S. Kitouni, H. Houari
doaj   +1 more source

Hemp FRRP Confined Lightweight Aggregate Concrete (LWAC) Circular Columns: Experimental and Analytical Study

open access: yesBuildings, 2022
Intrinsically, lightweight aggregate concrete (LWAC) suffers from the low compressive strength and deformation capacity. This restricts the use of LWAC mainly to non-structural applications.
Suniti Suparp   +8 more
doaj   +1 more source

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