Results 31 to 40 of about 9,303 (212)

Synthesis and properties of low-energy consumption and high slump retaining type of polycarboxylate superplasticizer

open access: yesShuili Shuiyun Gongcheng Xuebao, 2017
The synthesis process with low-energy consumption is an important developing direction for green synthesis of the water reducing agent. Developing a high slump retaining type of polycarboxylate superplasticizer has an important practical significance in ...
TANG Xiusheng, ZHENG Lingyue, CHEN Jian
doaj   +1 more source

Influence of Polycarboxylate Superplasticizer on the Properties of Cement-Fly Ash Cementitious Materials and Concrete

open access: yes, 2022
Concrete materials often crack due to the temperature field caused by the early heat of hydration, affecting structural safety and normal use. To solve this problem, this paper proposes the method of incorporating polycarboxylate superplasticizer to ...
Yuling Zhu   +7 more
core   +1 more source

Strength Development of Cemented Tailings Materials Containing Polycarboxylate ether-based Superplasticizer: Experimental Results on the Effect of Time and Temperature [PDF]

open access: yes, 2020
This paper presents new findings of research conducted to experimentally assess the effects of a polycarboxylate-based superplasticizer on the strength of CPB subjected to varying curing time and temperature (2C, 20C, and 35C).
Fall, Mamadou, Haruna, Sada
core   +1 more source

Low-heat steaming treatment of concrete with polycarboxylate superplasticizers

open access: yesMagazine of Civil Engineering, 2021
Recommendations for quantity of polycarboxylate water-reducing admixtures, for the properties of Portland cement as well as the curing regimes is presented in order to reduce the Portland cement amount, to improve the transfer and design strength and ...
Olga Smirnova
doaj   +1 more source

Study on the Adaptability of Polycarboxylate Superplasticizer to Cement in Guangdong Area [PDF]

open access: yesE3S Web of Conferences
There are many types of cement in Guangdong, each with its own differences, so it is important to study the adaptability of polycarboxylate superplasticizer to cement in Guangdong.
Wang Baoxian   +3 more
doaj   +1 more source

Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry

open access: yesAdvances in Civil Engineering, 2020
Good fluidity is the precondition to ensure the pipeline transportation of the filling slurry. The admixture in the filling slurry will affect the rheological properties of the slurry.
Fulin Wang   +3 more
doaj   +1 more source

Effect of Ferrous ion on the performance of polycarboxylate superplasticizers [PDF]

open access: yesAdvances in Engineering Research, 2015
The effect of ferrous ions on the molecular weight and molecular weight distribution of PCE is investigated by Gel permeation chromatography (GPC). The effect of ferrous ions on the dispersion properties of PCE is measured by the fluidity of cement pastes.
Yao Bi   +4 more
openaire   +1 more source

Insight into Saturated Hydraulic Conductivity of Cemented Paste Backfill Containing Polycarboxylate Ether-Based Superplasticizer

open access: yes, 2022
Recycling of tailings in the form of cemented paste backfill (CPB) is a widely adopted practice in the mining industry. Environmental performance is an important design criterion of CPB structures.
Mamadou Fall, Sada Haruna
core   +1 more source

Sonicating polycarboxylate-based superplasticizer for application in cementitious matrix

open access: yesRevista IBRACON de Estruturas e Materiais, 2022
Sonication is widely used for nanomaterials dispersion in cementitious matrices. Polycarboxylate-based superplasticizer (SP) admixtures are usually incorporated in the aqueous nanomaterials suspension before sonication to improve the dispersion of these ...
Laura Silvestro   +5 more
doaj   +1 more source

Experimental study on influence of plasticizer on fluidity of convection- solidified silt

open access: yesYantu gongcheng xuebao
Compared with the traditional backfill materials, the performance-controlled fluidized solidified (PCFS) backfill materials are characterized by high flow state and self-compaction, which can effectively avoid engineering problems caused by insufficient ...
WANG Wenchong 1, HUANG Yinghao 1, WANG Shuo 1, PENG Guangyi 2, WANG Huai 2
doaj   +1 more source

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