Improvement of Early Strength of Cement Mortar Containing Granulated Blast Furnace Slag Using Industrial Byproducts

Kim, Jin-Hyoung; Lee, Han-Seung

doi:10.3390/ma10091050

Cited by 19 publications

(10 citation statements)

References 23 publications

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“…erefore, it is required to use the environment-friendly, easy to recycle materials with low CO 2 emissions in material technology and to improve the environment-friendly properties of existing materials, as such in all sectors [2]. For this purpose, blast furnace slag which can be characterized as a waste-type binder can be replaced by the clinker in the binder matrix by means of its features including high sulfate resistance, high ultimate strengths, and low CO 2 release in particular [3].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Thermal Conductivity of Aerogel-Incorporated Alkali-Activated Slag Mortars

Bostancı

Sola

2018

Advances in Civil Engineering

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Compressive strength, thermal conductivity coefficient, and porosimetric properties of alkali-activated slag (AAS) mortars containing silica aerogel were investigated experimentally in this study. For this purpose, slag mortar mixtures at 0.75% and 1.0% aerogel content ratios were prepared, and these mortar mixtures were activated with lithium carbonate (Li 2 CO 3 ) at 0.03% and 1.50% dosage rates. Mortar samples were exposed to curing process in water for 2, 7, and 28 days, and the samples, which completed the curing stage, were subjected to the compressive strength test. e porosimetry test and the thermal conductivity coefficient measurement were carried out following the compressive strength test on 28-day samples. e varying aerogel content rate in the mixtures and the effects of the dosage of Li 2 CO 3 on the gel, capillary, and macropore distributions, and the effect of changing porosimetric properties on compressive strength and thermal conductivity coefficient were analyzed in detail. Experimental studies have shown that AAS mortars including an optimum 0.75% aerogel content rate and 0.03% Li 2 CO 3 activation provided a compressive strength of 34.1 MPa and a thermal conductivity coefficient of 1.32 W/mK. Aerogel addition provides a partial compressive strength increase at 7-and 28-day samples while it also causes maximum strength loss of 5.0% at 2-day samples.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Thermal Conductivity of Aerogel-Incorporated Alkali-Activated Slag Mortars

Bostancı

Sola

2018

Advances in Civil Engineering

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“…The transduction of the signal are then transferred from the input layer into e output layer with the help of biases and weights through mathematical procedures. The MLP comprises of an input together with one or more hidden layers and output layers in its structural framework much similar to ANN (Committee 2000; Kim and Lee 2017).…”

Section: Multi-layer Perceptron (Mlp) Neural Networkmentioning

confidence: 99%

The effect of ethanolic leaves extract of Hymenodictyon floribundun on inflammatory biomarkers: a data-driven approach

et al. 2021

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Background Medicinal plants are used to manage pain and inflammatory disorders in traditional medicine. A scientific investigation could serve as a basis for the determination of molecular mechanisms of antinociceptive and antiinflammatory actions of herbal products. In this work, we used both artificial intelligence (AI) based models inform of adaptive neuro-fuzzy inference system and artificial neural network (ANN) as well as a linear model, namely; stepwise linear regression in modelling the performance of four different inflammatory biomarkers namely; interleukin (1L)-1β, 1L-6, tumour necrosis factor (TNF)-α and prostaglandin E2 (PGE2). This modelling was done using number of abdominal writes, the reaction time of paw licking in mice and paw oedema diameter as the input variables. Results Four different performance indices were employed, which are determination coefficient (DC), root mean squared error (RMSE), mean square error (MSE) and correlation co-efficient (CC). The results have shown the superiority of the AI-based models over the linear model. Conclusions The overall quantitative and visualized comparison of the results showed that adaptive neuro-fuzzy inference system outperformed the ANN and SWLR models in modelling the performance of the four inflammation biomarkers in both the calibration and verification phases.

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“…Portland cement CEM I is a powdered material made of clinker and gypsum [24]. Gypsum is used to control the hardening time of cement [25], and the mechanical properties (strength, shrinkage, and expansion) of cement can change depending on the amount of gypsum in the matrix [26,27]. Gypsum may be present in small proportions as anhydrite (CaSO4) but, owing to instability, rarely as the hemihydrate (CaSO4•1/2H2O).…”

Section: Introductionmentioning

confidence: 99%

Influences of Chemical Composition and Fineness on the Development of Concrete Strength by Curing Conditions

Lee¹,

Lee²

2019

Materials

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In this study, the influences of chemical composition and fineness on the development of concrete strength by curing conditions were investigated through performance evaluation of high SO3 Portland cement (HSPC) and ordinary Portland cement (OPC). At the same fineness (3800 cm2/g), the initial and final setting times of HSPC were 92 and 98 min less than OPC. Early mortar compressive strength was approximately 176% higher after 24 h. After curing for 15 h, 18 h, and 24 h, the maturity of HSPC concrete (107.4%, 109.6%, and 111.7%) and early compressive strength (146.4%, 170.7%, and 154.5%) were higher than measured for OPC concrete. HSPC fineness was 111.8% higher than OPC, leading to early activation of the hydration reaction. By X-ray fluorescence analysis, the SO3 content of HSPC was 107.9% that of OPC. The applicable time for HSPC concrete form removal was shorter than that for OPC concrete. The relationships y = −10.57 ln(x) + 47.30 and y = −9.84 ln(x) + 44.05 were estimated for predicting the early-age strength OPC and HSPC concrete. Therefore, applying HSPC concrete to an actual construction site is expected to shorten the construction period and reduce the heating curing cost in winter compared to OPC concrete.

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Improvement of Early Strength of Cement Mortar Containing Granulated Blast Furnace Slag Using Industrial Byproducts

Cited by 19 publications

References 23 publications

Mechanical Properties and Thermal Conductivity of Aerogel-Incorporated Alkali-Activated Slag Mortars

Mechanical Properties and Thermal Conductivity of Aerogel-Incorporated Alkali-Activated Slag Mortars

The effect of ethanolic leaves extract of Hymenodictyon floribundun on inflammatory biomarkers: a data-driven approach

Influences of Chemical Composition and Fineness on the Development of Concrete Strength by Curing Conditions

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