Effect of high temperatures on the properties of lightweight geopolymer concrete based fly ash and glass powder mixtures

Turkey, Firas Abed; Beddu, Salmia; Ahmed, Ali Najah; Al-Hubboubi, Suhair

doi:10.1016/j.cscm.2022.e01489

Cited by 17 publications

(13 citation statements)

References 39 publications

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“…And the rate of decrease in ultrasonic pulse sound velocity was inversely proportional to the increase in fiber volume. Firas et al [23] investigated the effect of high temperatures on the performance of lightweight geopolymer concrete with fly ash-glass powder mixes. The correlation between temperature, ultrasonic pulse sound velocity and compressive strength of lightweight concrete was investigated using ultrasonic testing techniques.…”

Section: Currennt Status Of Foreign Researchmentioning

confidence: 99%

Concrete Structure Ultrasonic Testing Technology Research Latest Progress and Development Trend

Yu¹,

Wen²,

Zhao³

et al. 2023

E3S Web Conf.

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Many concrete structures in use have safety problems due to material deterioration, actual construction defects, structural damage, etc. Therefore, nondestructive testing is required to determine the presence of defects. Ultrasonic technology is an important tool in nondestructive testing, which can detect defects in concrete and be combined with other methods or models to make it more accurate. At present, ultrasonic inspection technology has been more research at home and abroad, both in theory and in engineering, and there has been great progress. This paper summarizes the latest progress of ultrasonic inspection technology for concrete structures at home and abroad respectively, and points out the future development trend.

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Section: Currennt Status Of Foreign Researchmentioning

confidence: 99%

Concrete Structure Ultrasonic Testing Technology Research Latest Progress and Development Trend

Yu¹,

Wen²,

Zhao³

et al. 2023

E3S Web Conf.

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“…CDW comprise masonry, fired clay brick, stoneware, concrete, glass, and mortar wastes. Concrete-based wastes, such as recycled concrete block (RCB) [ 43 , 49 , 50 ] are the most studied CDW as aggregates in alkali-activated concretes, followed by fired clay brick (FCB) [ [51] , [52] , [53] ] ( Fig. 1 b).…”

Section: Characteristics Of Waste-based Lightweight Aggregates (Lwa)mentioning

confidence: 99%

“…Composites incorporating FCB fragments developed 24.9 MPa compressive strength, exceeding the 21.4 MPa achieved for composites made with commercial expanded clay (Leca) [ 51 ]. Composites containing FCB also exhibited higher compressive, flexural, and tensile strengths.…”

Section: Performance Of Composite Materials Featuring Alkali Activate...mentioning

confidence: 99%

“…In composites lightened with ceramic LWA water absorption increased as follows, depending on the added aggregate: FCB (4.79%) [ 51 ], WFC (8.9–12%) [ 47 ] and CCB (9.5–32.5%) [ 49 ]. In composites lightened with thermoplastic polymeric LWA, absorption increased in the following order: PP (7.8–11.7%) [ 66 ] and PET (6.73–20%) [ 57 , 63 ].…”

Section: Performance Of Composite Materials Featuring Alkali Activate...mentioning

confidence: 99%

See 1 more Smart Citation

Performance and applications of lightweight geopolymer and alkali activated composites with incorporation of ceramic, polymeric and lignocellulosic wastes as aggregates: A review

Valencia Isaza,

Mejía Arcila,

Restrepo

et al. 2023

Heliyon

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“…SF can be utilized in the construction of concrete without the need for cement. It also offers a sustainable solution for disposing of silica fume [72]. Table 2 provides a list of typical product materials [72][73][74].…”

Section: Silica-fume (Sf)mentioning

confidence: 99%

Elevated Temperature Effects on Geo-Polymer Concrete: An Experimental and Numerical-Review Study

Turkey,

Beddu,

Al-Hubboubi

et al. 2023

ACSM

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The manufacture of cement plays a substantial role in the emission of carbon dioxide (CO2) into the atmosphere, hence exacerbating the adverse impacts of global warming. Consequently, the emergence of Geo-Polymer concrete has presented itself as a potentially feasible substitute owing to its commendable environmental sustainability. This manuscript provides a comprehensive analysis of prominent studies investigating the effects of increased temperatures and fire exposure on concrete across its entire operating duration. This study examines the significant impacts on the fundamental physical and mechanical characteristics of concrete, as revealed by laboratory experiments. Furthermore, this review comprehensively examines previous research endeavors that have used machine learning methodologies to predict tangible actions, aiming to optimize resource allocation, time efficiency, and cost-effectiveness in laboratory inquiries. Geo-Polymer concretes have exhibited remarkable resistance to elevated temperatures and severe fires, as evidenced by laboratory and field assessments of cracking, spalling, and strength degradation. Prior studies have demonstrated that both the aggregate type and temperature have a substantial impact on the degradation of compressive strength. Moreover, previous research has indicated that Geo-Polymeric concrete, which is comprised of fly ash, exhibits superior heat resistance compared to conventional concrete using Portland cement, withstanding temperatures of up to 400 degrees Celsius. This research also highlights the widespread adoption of the Artificial Neural Network (ANN) technique in forecasting the compressive strength of conventional concrete. Conversely, alternative approaches such as the Genetic Weighted Pyramid Operation Tree (GWPOT) are preferred for high-performance concrete. The primary objective of this extensive investigation is to establish a fundamental basis for future studies on sustainable alternatives to concrete and approaches for predictive modeling.

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Effect of high temperatures on the properties of lightweight geopolymer concrete based fly ash and glass powder mixtures

Cited by 17 publications

References 39 publications

Concrete Structure Ultrasonic Testing Technology Research Latest Progress and Development Trend

Concrete Structure Ultrasonic Testing Technology Research Latest Progress and Development Trend

Performance and applications of lightweight geopolymer and alkali activated composites with incorporation of ceramic, polymeric and lignocellulosic wastes as aggregates: A review

Elevated Temperature Effects on Geo-Polymer Concrete: An Experimental and Numerical-Review Study

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