Results 31 to 40 of about 531,299 (389)

The influence of the type of anti-foaming admixture and superplasticizer on the properties of self-compacting mortar and concrete

open access: yesJournal of Civil Engineering and Management, 2012
To prevent excessive air entrainment, superplasticizers (SPs) should not only be compatible with cement, but also should not create the air-entraining effect in mortar.
Beata Łazniewska-Piekarczyk   +1 more
doaj   +1 more source

Use of high ductile mortar mixing method for the enhancement of flexural fracture behaviour of steel filler mortar

open access: yesResults in Engineering, 2023
The use of steel fillers enhances the flexural behaviour of mortar and concrete. However, it makes it more difficult to disperse them uniformly and coat them firmly in the mortar/concrete with the conventional mixing method while using them at higher ...
Tek Raj Gyawali
doaj   +1 more source

Electrical Resistivity and Electrical Impedance Measurement in Mortar and Concrete Elements: A Systematic Review

open access: yesApplied Sciences, 2020
This paper aims at analyzing the state-of-the-art techniques to measure electrical impedance (and, consequently, electrical resistivity) of mortar/concrete elements.
G. Cosoli   +4 more
semanticscholar   +1 more source

RESISTANCE OF MORTARS WITH GYPSUM, LIME AND COMPOSITE BINDERS AGAINST MOLDS

open access: yesActa Polytechnica CTU Proceedings, 2019
Resistance of three mortars (the lime mortar, the gypsum mortar and the mortar with the composite binder) against molds was evaluated. Mortars were also compared according to their pH, bulk density, strength and porosity. Experiments showed that the lime
Jitka Krejsová, Magdaléna Doleželová
doaj   +1 more source

Study on Properties of Waste Concrete Powder by Thermal Treatment and Application in Mortar

open access: yesApplied Sciences, 2020
Waste concrete must be crushed, screened, and ground in order to produce high-quality recycled aggregate. In this treatment process, 15–30% waste concrete powder (
Yuwu Sui   +4 more
semanticscholar   +1 more source

Effect of Copolymer Latexes on Physicomechanical Properties of Mortar Containing High Volume Fly Ash as a Replacement Material of Cement

open access: yesThe Scientific World Journal, 2014
This paper investigates the physicomechanical properties of mortar containing high volume of fly ash (FA) as partial replacement of cement in presence of copolymer latexes.
El-Sayed Negim   +5 more
doaj   +1 more source

Mechanical Properties and Microscopic Mechanism of Coral Sand-Cement Mortar

open access: yesAdvances in Materials Science and Engineering, 2020
The workability and mechanical performance of coral sand-cement mortar (coral mortar, for short) and the modification effects of mineral admixtures on the coral mortar were studied in this paper.
Luoxin Wang   +5 more
doaj   +1 more source

Utilization of By-Products and Wastes as Supplementary Cementitious Materials in Structural Mortar for Sustainable Construction

open access: yesSustainability, 2020
Rapid growth in industrial development has raised the concern of proper disposal of the by-products generated in industries. Many of them may cause serious pollution to the air, land, and water if dumped in open landfills.
Shamir Sakir   +4 more
semanticscholar   +1 more source

Effect of white soil substitution on fly ash based mortar geopolymers with sodium hydroxide activator

open access: yesMedia Komunikasi Teknik Sipil, 2020
The presence of white soil in a geopolymer mortar affects the physical and mechanical properties of the mortar itself, especially in compressive strength, density and modulus of elasticity produced. Geopolymer mortar composed of fly ash, sand, water, and
Yulita Arni Priastiwi   +3 more
doaj   +1 more source

Influence of superplasticizer on workability and strength of ambient cured alkali activated mortar

open access: yesCleaner Materials, 2022
Alkali activated materials contain aluminosilicates, which can be used for building with a low environmental impact by repurposing waste resulting in cost-effective construction.
Elsa Paul
doaj   +1 more source

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