Influence of Various Design Parameters on Compressive Strength of Geopolymer Concrete: A Parametric study by Taguchi Method

doi:10.5829/ije.2021.34.10a.16

Cited by 5 publications

(4 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5. The highest flexural strength(8.36 MPa) of GC mixes was achieved by involving 1.5% of steel fiber content.…”

mentioning

confidence: 88%

“…Instead of Portland cement, by-product materials such as fly ash or new materials such as metakaolin were used to develop an inorganic alumina-silica polymer that works as *Corresponding Author Institutional Email: hussam@uowasit.edu.iq (H. A. Goaiz) cementing material [3][4][5]. Both ordinary concrete and GC are weak under tensile stresses and for this reason, the concrete in tension is neglected in many international codes [6].…”

Section: Introduction Amentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Goaiz¹,

Shamsaldeen²,

Abdulrehman³

et al. 2022

IJE

View full text Add to dashboard Cite

In the last few decades, the geopolymer concrete presented an evolution in civil engineering field. The current study aims to produce a low cost steel fiber reinforced geopolymer concrete with an ecceptable tensile properties. The experimental program aims to investigate the tensile behaviour of geopolymer concrete reinforced with steel fiber and made of recycled materials. The primary ingredients of the steel fiber reinforced geopolymer concrete in this study were waste materials. The recycled steel fiber was extracted from tires and chopped into tiny fibers with an average length of 20 mm and an average diameter of 0.7 mm. The geopolymer concrete in this study consisted of coarse aggregate, which was crushed recycled concrete. Also, the fine aggregate was crushed waste glass. In addition to the compressive strength, tensile test procedures such as splitting tensile strength, double punch tensile strength, and flexural tensile strength were all investigated in this study. Recycled steel fiber was compared to a new hooked-end steel fiber and hybrid steel fiber (50% new + 50% recycled) with three different volumetric percentages of steel fiber (0.5%, 1.0%, and 1.5%). The new steel fiber geopolymer concrete mix with 1.5% of steel fiber showed the highest test results among other mixes, as the tensile strength was increased by nearly 50% in the case of the double punch test. This conduct could be explained as the new steel fiber having a uniform, straight shape with hooked ends, increasing the anchorage between the fly ash binder and the steel fiber. In addition, the recycled steel fiber was contained some rubber crumbs that could be another reason that negatively affected the tensile properties of the geopolymer concrete.

show abstract

“…5. The highest flexural strength(8.36 MPa) of GC mixes was achieved by involving 1.5% of steel fiber content.…”

mentioning

confidence: 88%

Section: Introduction Amentioning

confidence: 99%

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Goaiz¹,

Shamsaldeen²,

Abdulrehman³

et al. 2022

IJE

View full text Add to dashboard Cite

show abstract

“…Also, there is lack of fire resistance properties of GPC limits its widespread use in infrastructure projects. Lastly, the availability and quality of industrial by-products such as fly ash and slag, which are the key components of GPC, can vary significantly depending on the location and market demand [24]. This can limit the scalability and consistency of GPC production.…”

Section: Introductionmentioning

confidence: 99%

Residual Properties of Geopolymer Concrete for Post-Fire Evaluation of Structures

Kanagaraj,

Anand,

Andrushia

et al. 2023

Materials

View full text Add to dashboard Cite

The research focuses on effectively utilizing industrial by-products, namely fly ash (FA) and ground granulated blast furnace slag (GGBS), to develop sustainable construction materials that can help reduce carbon emissions in the construction industry. Geopolymer mix design using these by-products is identified as a potential solution. The study investigates the impact of different water to binder ratios (W/B) ranging from 0.4 to 0.6 on the residual properties, including compressive strength (CS), of geopolymer concrete (GPC), in accordance with Indian Standard for Alkali activated concrete. Lower W/B ratios were found to result in a more compact and less porous microstructure in the GPC. Additionally, the research explores the post-fire performance of GPC with varying grades (M10, M20, M30, & M40) and different W/B ratios, following the ISO 834 standard fire curve. It was observed that concrete samples exposed to elevated temperatures displayed a more porous microstructure. The mass loss of GPC with 0.4 W/B was found to be 2.3–5.9% and for 0.6 W/B ratio, the loss was found to be 3–6.5%, after exposing to 30-, 60-, 90-, and 120-min of heating. In the case of strength loss, for 0.4 W/B ratio, the loss was 36.81–77.09%, and for 0.6 W/B ratio the loss was 38.3–100%, after exposing to 30-, 60-, 90-, and 120-min of heating. Overall, the findings suggest that optimizing the W/B ratio in geopolymer concrete can enhance its compressive strength, as well as residual properties, and contribute to its suitability as a sustainable construction material. However, the response to elevated temperatures should also be considered to ensure its performance in fire scenarios.

show abstract

“…Regarding the issue of what causes global warming， Raj, et al [11] points out that the release of greenhouse gases such as CO2 has a significant impact on global warming. The allowable concentration of CO2 in the atmosphere is 0.04%, and when the CO2 concentration in the atmosphere exceeds the allowable range, it will lead to global warming.…”

Section: Introductionmentioning

confidence: 99%

Application of Correlation Analysis Based on Principal Components in the Study of Global Temperature Changes

Chen

Jiang

Cheng

et al. 2023

IJEE

View full text Add to dashboard Cite

The current issue of global warming is prominent, and there are many factors that affect global temperature changes. Therefore, how to correctly judge the relationship between each influencing factor and global temperature changes and accurately find out the main reasons of global temperature rise which are the problems that must be considered and solved to alleviate global warming at present. According to previous official data, this paper proposed a correlation analysis method based on principal components to comprehensively analyze the relationship between natural disaster factors, human factors, and global temperature changes, and find out the main reasons that affect global temperature rise. Compared with traditional research methods, the new method provided in this paper can still remain scientific and accurate calculation results while reducing computational dimensions. The experimental results showed that in the relationship between natural disasters and global temperature changes, the average correlation coefficient of the principal component represented by biological disasters and geological disasters was the highest at 0.6097 and a test value of p<0.05, indicating a significant positive correlation between them and global temperature. However, the correlation coefficient of the principal component represented by floods and storms was negative, indicating a negative correlation between them and global temperature. In exploring the main factors affecting global temperature rise, both the total global population and the total global CO2 emissions had a significant positive correlation with global temperature. Among them, the average correlation coefficient of the total global population was the highest at 0.9972, and its weight also was the highest at 26.42%. Therefore, this indicates that the total global population is the most important factor affecting global temperature rise. This study can provide reference for countries to make decisions in response to global warming.

show abstract

Influence of Various Design Parameters on Compressive Strength of Geopolymer Concrete: A Parametric study by Taguchi Method

Cited by 5 publications

References 28 publications

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Residual Properties of Geopolymer Concrete for Post-Fire Evaluation of Structures

Application of Correlation Analysis Based on Principal Components in the Study of Global Temperature Changes

Contact Info

Product

Resources

About