Results 21 to 30 of about 21,203 (255)

Waste aggregate concrete properties using waste tiles as coarse aggregate and modified with PC superplasticizer

Open Engineering, 2022
Concrete is the most popular construction material and has a relatively high compressive strength and it does not crack under its own weight, but its tensile strength is much lower compared to its compressive strength.
Al-Labban Salama Nasim Yousif, Abdullah Firas Abdulhadi, Karagoly Yahya Hamza, Shubber Mustafa Salman, Hasan Suhad Abdulsattar, Jabal Qusay A.   +5 more
doaj   +1 more source

Compatibility Assessment of Commercial Cements with superplasticizers [PDF]

E3S Web of Conferences, 2020
In the present study, compatibility assessment of commercially available cements (OPC and PPC) and SNF & PCE based super plasticizers are made by evaluating the workabilities, setting times and compressive strengths of M40 grade concrete mixes made with ...
Shrihari S, Seshagiri Rao M V, Srinivasa Reddy V, Manasa Amandu   +3 more
doaj   +1 more source

High Quality Concrete Comprising of Several Mix of ACM’s

Civil and Environmental Engineering, 2020
Concrete has today requesting execution prerequisites. The concrete strength emergency which started to pull in open consideration constrained the specialists to investigate the strength of concrete.
Bajad Mohankumar N.
doaj   +1 more source

Sonicating polycarboxylate-based superplasticizer for application in cementitious matrix

Revista 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, Artur Spat Ruviaro, Geannina Terezinha dos Santos Lima, Paulo Ricardo de Matos, Erich Rodríguez, Philippe Jean Paul Gleize   +5 more
doaj   +1 more source

On the “Thixotropic” Behavior of Fresh Cement Pastes

Eng, 2022
Thixotropic behavior describes a time-dependent rheological behavior characterized by reversible changes. Fresh cementitious materials often require thixotropic behavior to ensure sufficient workability and proper casting without vibration.
Youssef El Bitouri, Nathalie Azéma
doaj   +1 more source

Use of wastes of rubble crushing in self-compacting concrete [PDF]

Инженерно-строительный журнал, 2013
Use of wastes of rubble crushing in the concrete structure allows improving physical and mechanical properties and resolving the issue of recycling.
N.M. Morozov, V.I. Avksentiev, I.V. Borovskikh, V.G. Khozin   +3 more
doaj   +1 more source

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

E3S 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, Qiu Nianli, Zhao Yuwei, Chen Xiaobing   +3 more
doaj   +1 more source

Characterization data of reference industrial polycarboxylate superplasticizer VP 2020/15.2 used for Priority Program DFG SPP 2005 “Opus Fluidum Futurum - Rheology of reactive, multiscale, multiphase construction materials”

Data in Brief, 2021
An industrial polycarboxylate superplasticizer sample has been chosen in the Priority Program 2005 of the German Research Foundation (DFG SPP 2005).
Lin Zhang, Ran Li, Lei Lei, Johann Plank
doaj   +1 more source

Homogenization mathematical model of the cemented filling slurry with crushing waste rock and whole tailings

工程科学学报, 2022
Aiming at the problems of pipeline transportation blockage and filling body stratification caused by waste rock–unclassified tailings high-concentration slurry, the effects of superplasticizer and stirring parameters on the slurry homogenization were ...
Xiao-bing YANG, Sheng-hua YIN, Shuo HAO, Hang YANG   +3 more
doaj   +1 more source

Influence of mixture composition on fresh concrete workability for ballastless track slabs [PDF]

E3S Web of Conferences, 2020
There are several factors that affect the fresh concrete workability: water demand and composition of Portland cement, properties of fine and coarse aggregates, presence of superplasticizer and others admixtures, etc.
Kazanskaya Liliya, Smirnova Olga
doaj   +1 more source