Optimization of superplasticizer in portland pozzolana cement mortar and concrete

Sathyan, Dhanya; Anand, K. B.; Mini, K.M.; Aparna, S.

doi:10.1088/1757-899x/310/1/012036

Cited by 14 publications

(3 citation statements)

References 9 publications

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“…The results indicate that using SP (PCE2) to catch the target slump (mix 2) increased the compressive strength of the concrete in 11, 42, and 90 days up to 2,1.6 and 1.48 times respectively, in comparison with control samples (mix 1). Sathyan et al also indicated that using PCE based SP increased compressive strength compared to the control sample without SP because of the enhancement in workability. Applying AEA (1 wt%) with SP (0.7%) (mix 3) reduced the compressive strength of the samples in 11, 42, and 90 days up to 11%, 3%, and 9%, respectively, in comparison with the mixture without AEA (mix 2).…”

Section: Resultssupporting

confidence: 89%

Effect of admixtures and supplementary cementitious material on mechanical properties and durability of concrete

Asadollahfardi

Yahyaei

Salehi

et al. 2020

Civil Engineering Design

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We studied the effects of superplasticizer (SP) (PCE1 and PCE2), air-entraining admixtures (AEA), and supplementary cementitious material (silica fume and fly ash) on the mechanical and durability properties of concrete samples. Eight concrete mix designs were prepared. The first six concrete mix design contained similar aggregates, PCE2 SP, AEA, 350 kg/m 3 cement, and water to cement ratio equal to 0.38, and one of the mentioned mix design was selected as control samples with water to cement ratio equal to 0.57, without PCE2 SP and AEA. We used a different quantity of PCE2 SP and AEA and replaced the fly ash or silica fume as part of cement in two of the mentioned mix designs. The last two concrete mix designs studied the effect of PCE1 SP and AEA on freezing and thawing of concrete mix design. Adding PCE2 SP in concrete mix design increased compressive strength at age 11, 42, and 90 days sharply and reduced the depth of water penetration at the age of 28 and 90 days compared to the control sample. Using simultaneous PCE2 and AEA in concrete mix design did not improve compressive strength significantly and increased slightly depth of water penetration compared to only using PCE2. However, increasing the quantity of AEA to 5% improved both compressive strength and reduced depth of water penetration.In the second group of concrete mix design, adding both PCE1 and AEA increased the number of resistible freezing and thawing cycles of concrete. Side chain length and molecular weight of PCE1 and PCE2 SPs had no important effect on the compressive strength and performance properties of concrete. K E Y W O R D Sdurability, fly ash, air-entrained admixture, freezing and thawing, silica fume

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Section: Resultssupporting

confidence: 89%

Effect of admixtures and supplementary cementitious material on mechanical properties and durability of concrete

Asadollahfardi

Yahyaei

Salehi

et al. 2020

Civil Engineering Design

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“…The PCE are composed of two main elements: a) the carboxylate group, which is anionic and allows interaction with the cement surface to produce dispersion and b) a polyethylene oxide side chain or a mixture of polyethylene-polypropylene to increase dispersion (Lei et al, 2022). PCE eliminates the segregation of concrete, gives it excellent dispersion of cement particles in water and accelerates the rate of hydration, setting and hardening (Khudhair et al, 2018), therefore, it increases the compressive strength and workability of concrete (Pereira et al, 2012), which increases the surface potential force, the solid-liquid affinity, and the steric hindrance (Sathyan et al, 2018;Tian et al, 2019), and prolongs the initial and final setting times . PCE superplasticizers were used to modify the surface of the sand in the preparation of the cement mortar and increased its compressive strength at 7 and 28 days of age (Noaman et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Polycarboxylate-based superplasticizer with added silica sub-microspheres for use in Portland cement materials

Ungsson-Nieblas,

Rubio-Rosas,

Vargas-Ortíz

et al. 2023

RMIQ

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“…can be proven with the Abrams Harder color experiment by using NaOH solution. (Sathyan et al, 2018) d. The function of fine aggregates is to provide stability and reduce the permanent deformation of pavement through interlocking and friction between the grains (Sarah et al, 2019). For this reason, the external properties required are angularity and roughness.…”

Section: Introductionmentioning

confidence: 99%

Strong Test Pressure Concrete Use of Asbest Waste

Muslimin

Suwarno

Gunarto

et al. 2020

scj

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Concrete is a significant and most dominant material used in building structures. Concrete consists of a mixture of cement, aggregate, water, and added ingredients. Concrete said material has an essential role in making concrete because it can change the real properties to suit the needs. Li, asbestos is a concrete-added material that can reduce the use of cement and produce concrete with absolute consistency. The purpose of this study was to determine how the effect of adding asbestos waste to cement. The method used is an experimental method based on previous research. The specimen used was cylindrical with a diameter of 15 cm and a height of 30 cm. The percentage variation of asbestos waste addition is 0%, 50%, and 100% of the weight of cement used. Typical concrete test results obtained an average value of 22.08 MPa, a 50% percentage produces an average compressive strength of 21.32 MPa, and a portion of 100% provides a compressive strength of 22.93 MPa. Then the results of the then actual strength test have increased in the percentage of asbestos waste 100%.

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Optimization of superplasticizer in portland pozzolana cement mortar and concrete

Cited by 14 publications

References 9 publications

Effect of admixtures and supplementary cementitious material on mechanical properties and durability of concrete

Effect of admixtures and supplementary cementitious material on mechanical properties and durability of concrete

Polycarboxylate-based superplasticizer with added silica sub-microspheres for use in Portland cement materials

Strong Test Pressure Concrete Use of Asbest Waste

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