Properties of microfine cement grouts at 4°C, 10°C and 20°C

Mirza, Jahangir; Saleh, Kaveh; Langevin, Marc André; Mirza, Saeed; Bhutta, Muhammad Aamer Rafique; Tahir, Mahmood Md.

doi:10.1016/j.conbuildmat.2013.05.026

Cited by 66 publications

(20 citation statements)

References 4 publications

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“…In respect to the resting time, the fresh grout showed a timeincreasing yield stress and a time-increasing plastic viscosity regardless of the temperature, similar to the results obtained by some authors [34,42,51]. However, the evolution is not constant.…”

Section: Evaluation Of the Combined Effect Of Temperature And Restingsupporting

confidence: 87%

“…Regarding the range of 5-20°C for both rheological parameters, it is observed a slight evolution as was also obtained by Mirza et al [34]. There is a decrease of plastic viscosity with the increase of temperature from 5°C to 20°C which can be attributed to an increase in the Brownian motion of the particles.…”

Section: Evaluation Of the Combined Effect Of Temperature And Restingsupporting

confidence: 70%

See 1 more Smart Citation

Influence of superplasticizer, temperature, resting time and injection pressure on hydraulic lime grout injectability. Correlation analysis between fresh grout parameters and grout injectability

Jorne

Henriques

Baltazar

2015

Journal of Building Engineering

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Section: Evaluation Of the Combined Effect Of Temperature And Restingsupporting

confidence: 87%

Section: Evaluation Of the Combined Effect Of Temperature And Restingsupporting

confidence: 70%

Influence of superplasticizer, temperature, resting time and injection pressure on hydraulic lime grout injectability. Correlation analysis between fresh grout parameters and grout injectability

Jorne

Henriques

Baltazar

2015

Journal of Building Engineering

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“…The resistance of AR modified grouts to bleeding and segregation is due to the formation of impermeable AR polymer films that inhibit the loss of a significant amount of water from the combined net structure of a polymer with cement hydrates. The ability of AR to significantly improve the stability of grouts is very important for adequately filling voids or other spaces and therefore for the effectiveness of a grouting project (Houlsby, 1988;Mirza et al, 2013).…”

Section: Construction Materialsmentioning

confidence: 99%

Effect of acrylic latex on the properties of cement grouts

Anagnostopoulos

Patsios

2019

Proceedings of the Institution of Civil Engineers - Constructio

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The main objective of this comprehensive laboratory project was to investigate the potential use of acrylic latex to improve the physical and mechanical properties of thick superplasticised cement grouts. Experiments were conducted using different acrylic latex dosages with cement grouts that were prepared with water to cement ratios of 0·5, 0·4 and 0·33. The results indicated that the addition of acrylic latex of up to 5% significantly increases the 28 and 90 d strength, despite an extension of the setting time. The bleeding and resistance to acid attack of acrylic latex modified grouts were significantly improved. Grouts containing acrylic latex had much a higher viscosity and yield stress than the un-modified grouts. However, acrylic latex reduces the viscosity and yield stress of grouts that were prepared with water to cement ratios of 0·5 and 0·4 when added in small amounts. Based on the experimental results, nonlinear regression analysis was performed to correlate the physical and mechanical parameters of the acrylic latex modified grouts and the descriptor variables.

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“…According to cement grouting practices, the use of thick, stable, cement suspensions is compulsory to obtain maximum filling of voids or other spaces, which cannot be obtained with the performance of unstable grouts due to their significant bleeding (Houlsby, 1988;Mirza et al, 2013). European standard EN 12715 (CEN, 2000b) characterises a suspension as stable if it has a bleed capacity of up to 5%.…”

Section: Resultsmentioning

confidence: 99%

Effect of superplasticiser type on the properties of cement grouts

Anagnostopoulos

2015

Advances in Cement Research

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The use of superplasticisers in microfine or regular cement-based grouts has become of vital importance in advanced professional grouting practices. These superplasticisers play an important role in the production of more durable grouts with improved rheological characteristics. This paper presents a laboratory study of the effects of a newgeneration polycarboxylate superplasticiser on the rheological properties, mechanical strength, final setting time and bleeding of cement grouts in comparison to that of a polynaphthalene superplasticiser. The experiments are conducted using different superplasticiser dosages with cement grouts proportioned with a water-to-cement ratio of 0 . 33, 0 . 4 or 0 . 5. The results show that grouts with polycarboxylate superplasticiser have higher viscosity, slightly increased bleeding and longer setting times compared with the polynaphthalene superplasticiser admixture.However, the polycarboxylate superplasticiser improves the final strength, especially for grouts with a water-tocement ratio of 0 . 4 and 0 . 5, and decreases the yield stress.

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Properties of microfine cement grouts at 4°C, 10°C and 20°C

Cited by 66 publications

References 4 publications

Influence of superplasticizer, temperature, resting time and injection pressure on hydraulic lime grout injectability. Correlation analysis between fresh grout parameters and grout injectability

Influence of superplasticizer, temperature, resting time and injection pressure on hydraulic lime grout injectability. Correlation analysis between fresh grout parameters and grout injectability

Effect of acrylic latex on the properties of cement grouts

Effect of superplasticiser type on the properties of cement grouts

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