Results 61 to 70 of about 9,303 (212)
Study on the Synthesis and Performance of Tetra-Copolymer Polycarboxylate Superplasticizer [PDF]
In this paper, a terra copolymer polycarboxylate superplasticizer (PCE) was synthesized using modified polyether (TPEG), acrylic acid (AA), sodium methallyl sulfonate (SMAS), and diethyl vinylphosphonate (AADE) as the main raw materials, under the action
Wenhong Chen +3 more
doaj +1 more source
Influence of PEG Addition on the Reactivity of a Metakaolin‐Based Geopolymer
PEG induces water redistribution within the activating solution, creating PEG‐rich and silicate‐rich domains that modify the local chemical environment. These interactions influence geopolymerization process and affect the balance between structural stability and flowability.
Xavier Lacambra‐Andreu +2 more
wiley +1 more source
Conference Name:International Symposium on Ecological Environment and Technology of Concrete. Conference Address: Beijing, PEOPLES R CHINA. Time:AUG 01-04, 2011.The compatibility between underwater-washout admixture(AWA) and two different types of ...
H.M. Hu +8 more
core +1 more source
The hydration behavior and the fluidity of cementitious mortar samples with water to cement ration of less than 0.2 were studied. Polycarboxylate ether (PCE) superplasticizers in different dosages were used to investigate the hydration process of fresh ...
Xiong-zhou Yuan +3 more
doaj +1 more source
Effect of superplasticizer on the strength of fly ash based geopolymer concrete
In this research, the effect of a polycarboxylate based superplasticizer on the strength of Geopolymer Concrete (GPC) was investigated. A fixed amount of superplasticizer (1.5 % of Fly Ash weight) was utilized along with alkali activators Sodium ...
Rhem Leoric Cantos Dela Cruz +4 more
doaj +1 more source
Polycarboxylate Superplasticizers Used in Concrete: A review
Modern concrete frequently uses a variety of chemical admixtures, like setting time-retarding admixtures, viscosity-modifying admixtures (VMA), and superplasticizers (SPs). These chemical admixtures greatly impact cement components like film-forming capacity, flowability, and film drying time.
Ponduri Samatha Chowdary +4 more
openaire +1 more source
ABSTRACT Workability control of alkali‐activated binders (AABs) remains an obstacle to producing low‐carbon clinkerless ultra‐high‐performance concrete, as their formulation usually necessitates low water‐to‐binder (W/B) ratios, high binder content, and concentrated activator solutions. To address this challenge, a greener and more manageable composite
Shengnan Sha +3 more
wiley +1 more source
Cold recycled mixture with asphalt emulsion (CRME) has gained more appreciation due to its environmental and economical advantages. Surfactant greatly affects the interaction between asphalt emulsion and cement, which can greatly affect the volumetric ...
Wenting Yang +5 more
doaj +1 more source
Ettringite Seeds for Strength Enhancement: Novel Synthesis via One‐Step Co‐Precipitation
ABSTRACT Reduced early strength can be a barrier to the adoption of cements blended with high levels of limestone. Chemical admixtures based on nucleation seeding are emerging as a potential solution. Herein, while synthesis of C‐S‐H‐based seeds has been thoroughly investigated in the literature, there are limited synthesis protocols available on other
Faisal Qadri +2 more
wiley +1 more source
Thermodynamic data for the complexation of Eu(iii) with a polycarboxylate based concrete superplasticizer are determined by TRLFS. These results are complemented by structural data of the respective Gd(iii) and Tb(iii) complexes which are obtained using ...
Panak, P.J. +14 more
core +1 more source

