Producing Lightweight Aggregates by Incorporating Waste LCD Glass with Reservoir Sediments

Tang, Chao; Wang, Shun Yuan; Cheng, Chiu Kuei; Huang, Chung Ho

doi:10.4028/www.scientific.net/amr.610-613.2287

Cited by 2 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, Fe 2 O 3 could be converted to FeO, which promoted strong auxiliary fusion. The contents of SiO 2 and Al 2 O 3 in the DS were lower than the normal requirements for the calcination of ceramsites, which affected the quality of the ceramsites (Chen et al, 2010;Lu et al, 2013;Tang et al, 2013). The contents of SiO 2 and Al 2 O 3 in the CFA were higher than those in the DS, which effectively complemented the scarce composition of DS, gas composition, and framework support components.…”

Section: Resultsmentioning

confidence: 93%

Research on the efficient water‐absorbing ceramsite generated by dredged sediments in Dian Lake–China and coal fly ash

Cai

Gao

et al. 2021

Water Environment Research

View full text Add to dashboard Cite

In order to transform the dredged sediment (DS) into an efficient waterabsorbing ceramsite (EWAC), the coal fly ash (CFA) and expansion agent were used to blend, expand, and sinter with the DS in the Dian Lake-China. A new type of high EWAC was prepared with the absorption ratio of 66.71%, which was much higher than similar products. The heavy metals leaching (HML) of EWAC showed that the concentration of As was 0.90 mg/L and the Hg, Pb, Cd, and Cr were too low to be detected. The characterization analysis showed that the EWAC cross section contained a lot of hydroxyl, ether, and P-Cl hydrophilic group by Fourier transform infrared (FT-IR), scanning electron microscope (SEM), and Brunauer-Emmett-Teller (BET) specific surface area (SSA) test method. The above groups and structures could greatly improve the water absorption (WA) performance of the EWAC. What's more, the SSA of the EWAC could reach 4.468 m 2 /g. The results of Comsol Multiphysics indicated that the SSA and average pore size (APS) of the EWACs were 10 and 6 times higher than the commercial ceramsites, respectively. The research provided the utilization of the DS with technical and theoretical basis for the construction of sponge city. Practitioner points• The article was focus on the utilization of dredged sediment (DS) and coal fly ash (CFA) for the basic material preparation technology and its toxicity test as the sponge city.• First, the raw materials were the DS in Dian Lake (Kunming, Yunnan, China) and CFA (thermal power plants), which were all belonged to the hazardous solid waste and was made to the efficient water-absorbing ceramsite (EWAC).• Second, the water absorption (WA) performance of the EWAC was improved greatly whose absorption ratio was much higher than similar products reached 66.71%.

show abstract

Section: Resultsmentioning

confidence: 93%

Research on the efficient water‐absorbing ceramsite generated by dredged sediments in Dian Lake–China and coal fly ash

Cai

Gao

et al. 2021

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…When the content of SiO2, Al2O3, and Fe2O3 is too low, it will affect the smoothness and strength of the shell of the sintered aggregate; however, when the content is too high, As far as lightweight aggregates are concerned, the main elements that affect its formation of glassy melt are SiO 2 , Al 2 O 3 , and Fe 2 O 3 . With respect to the composition, when the content of SiO 2 accounts for more than 50% and the total content of Al 2 O 3 and Fe 2 O 3 accounts for around 10-30%, it is possible to produce glass at a high temperature, thus successfully producing lightweight aggregates [14,17,18,47]. Among the sludge components, SiO 2 will affect the viscosity of the vitreous material when the lightweight aggregate is sintered.…”

Section: Chemical Composition Analysismentioning

confidence: 99%

A Feasibility Study on Textile Sludge as a Raw Material for Sintering Lightweight Aggregates and Its Application in Concrete

et al. 2023

View full text Add to dashboard Cite

This study aimed to investigate the feasibility of textile sludge as a raw material for sintering lightweight aggregates (LWAs) and its application in concrete. Three samples of different components were taken from the textile sludge, which came from different textile factories in Taiwan. The analysis of the chemical composition of the sludge shows that the total content of SiO2, Al2O3, and Fe2O3 in the textile sludge was far lower than the recommended value in the literature, and that glassy melt could not be produced and sintered into LWAs alone. Therefore, the water purification sludge obtained from a water purification plant owned by the Taiwan Water Supply Company was used as the main raw material, and the textile sludge was used as the auxiliary raw material in addition amounts of 7.5%, 15.0%, and 22.5%. The test results showed that the LWAs sintered by adding textile sludge to water purification sludge could reach the particle density that is generally required for LWAs (between 0.2 and 1.8 g/cm3). The 14-day compressive strength of the lightweight aggregate concrete made from textile-sludge-based LWAs was between 20 and 25 MPa. This means that textile-sludge-based LWAs can be used in secondary structural concrete.

show abstract

Producing Lightweight Aggregates by Incorporating Waste LCD Glass with Reservoir Sediments

Cited by 2 publications

References 5 publications

Research on the efficient water‐absorbing ceramsite generated by dredged sediments in Dian Lake–China and coal fly ash

Research on the efficient water‐absorbing ceramsite generated by dredged sediments in Dian Lake–China and coal fly ash

A Feasibility Study on Textile Sludge as a Raw Material for Sintering Lightweight Aggregates and Its Application in Concrete

Contact Info

Product

Resources

About