Influence of Hardening Accelerating Admixtures on Properties of Cement with Ground Granulated Blast Furnace Slag

Pizoń, Jan; Miera, Patrycja; Łaźniewska-Piekarczyk, Beata

doi:10.1016/j.proeng.2016.08.850

Cited by 8 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the construction industry, admixtures that accelerate setting and hardening are used to produce reinforced concrete products and sprayed concrete, and to compensate for low temperatures during concreting in the winter [1][2][3][4]. Inorganic accelerating admixtures include alkaline ones-hydroxides, carbonates, aluminates, silicates, nitrates, sulfates, and sodium and potassium thiosulfates-and non-alkaline ones: aluminum sulfate or aqueous solutions of complex aluminosulfate salts [2,[5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Influence of Water Glass Introduction Methods on Selected Properties of Portland Cement

Szewczenko

Kotsay

2021

Materials

View full text Add to dashboard Cite

This article presents a study of the effect of water glass and its introduction on the hydration of Portland cement and its properties in plastic and solid states. The introduction of sodium water glass into the mixing water extends the setting time of Portland cement by 35%, while introduction into the cement paste reduces it by 24.4%; for potassium water glass, the respective values are 10.8% and 10.8%. The introduction of sodium water glass into the mixing water decreases its consistency by 17.6%; its introduction into the cement paste reduces its consistency by 97%. Based on microcalorimetric studies and using the modelling method, mechanisms of the processes occurring in the cement paste, for various methods of introducing water glass admixtures, and their influence on the properties of cement are proposed. The important implications of the obtained results are that, using various methods for introducing admixtures of water glass, it is possible to regulate the setting of cement slurries within significant limits that are important during their transportation.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Water Glass Introduction Methods on Selected Properties of Portland Cement

Szewczenko

Kotsay

2021

Materials

View full text Add to dashboard Cite

show abstract

“…However, the incorporation of SCMs decreases the early strength significantly, especially with the incorporation of large amounts of SCMs such as in pumped concrete and self-compacting concrete (SCC). Even though adding accelerators such as calcium chloride (Riding et al, 2010), triethanolamine (Yan-Rong et al, 2016), and nitrate (Pizoń et al, 2016) can compensate for the adverse effects caused by the large amount of SCMs, but the improvement of early strength is limited and some accelerators also lead to the reduction of long term mechanical properties of concrete (Pizoń, 2017).…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization of Nano-Silica Modified Cement-Based Materials Mixed With Supplementary Cementitious Materials Based on Response Surface Method

Zhang

Lin

et al. 2021

Front. Mater.

View full text Add to dashboard Cite

This paper investigates the effect of supplementary cementitious materials (SCMs) on the fresh and mechanical properties of nano-silica modified cement-based materials (NSMCBM) based on the response surface method (RSM). Fly ash (FA), ground granulated blast-furnace slag (GGBFS), and silica fume (SF) were selected and the Box-Behnken design (BBD) method was used to design mix proportion. Besides, the quadratic term model was used to describe the relationship between independent variables and responses including fluidity, yield stress, plastic viscosity, thixotropy, and 3, 7, 28, and 56 d compressive strength. Based on the quadratic term model, the response surface of each response was drawn to understand the influence of SCMs. Results showed that FA had significant effect on fluidity and thixotropy while three kinds of SCMs had extremely significant effect on plastic viscosity. Response surface plot showed that NS could increase the plastic viscosity of NSMCBM to 1.445 Pa•s (M16). However, the addition of FA and GGBFS decreased the plastic viscosity to 0.9 Pa•s, which was comparable with the reference sample (M17). Such value was 37.7% lower than that of M16. Meanwhile, NS complemented the reduction of compressive strength caused by SCMs. Thus, the synergy effect of SCMs and NS could improve both fresh and mechanical properties. At last, multi-objective optimization was utilized to optimize the proportion of SCMs considering the interaction between SCMs to achieve desirable parameters.

show abstract

Enhancement of hydraulic activity of slag-blended Portland cement

2018

View full text Add to dashboard Cite

Influence of Hardening Accelerating Admixtures on Properties of Cement with Ground Granulated Blast Furnace Slag

Cited by 8 publications

References 1 publication

Influence of Water Glass Introduction Methods on Selected Properties of Portland Cement

Influence of Water Glass Introduction Methods on Selected Properties of Portland Cement

Multi-Objective Optimization of Nano-Silica Modified Cement-Based Materials Mixed With Supplementary Cementitious Materials Based on Response Surface Method

Enhancement of hydraulic activity of slag-blended Portland cement

Contact Info

Product

Resources

About