Life cycle assessment of autoclaved aerated fly ash and concrete block production: a case study in China

Shi, Yifei; Li, Yue; Tang, Yuzhou; Yuan, Xueliang; Wang, Qingsong; Hong, Jinglan; Zuo, Jian

doi:10.1007/s11356-019-05708-8

Cited by 31 publications

(5 citation statements)

References 24 publications

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“…Similar procedures have been applied elsewhere [48]. According to Shi et al [41], the blocks need to be cured immediately after their elaboration, so that the immobile specimens were left in the place where they were demoulded for a day until they hardened. Then they are moved to a storage place where the climatic conditions are adequate for the blocks to maintain their humidity and achieve maximum resistance.…”

Section: Concrete Block Buildingmentioning

confidence: 99%

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Gonzagaa¹,

Carrillo²,

Bedón³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The current study describes the development and evaluation of hollow concrete blocks using recycled polymers and a waterproof, resistance improver nanoadditive together with cement, sand, and pumice to search for an ecological building material capable of reducing the environmental pollution. Three phases were performed; in which the first, we characterized petrous aggregates, polyethylene terephthalate (PET) and the nanoadditive. In the second one, several dosages were established with different percentages of crushed PET that represented to the sand. Additionally, a nanoadditive's part was placed in relation to the total water of the mixture. In the third phase, the compressive stress, volumetric weight, and absorption of the elaborated specimens were determined according to the national standard. The resulting optimal dosage was about 25% PET in replacement of sand + 0.0087 kg of nanoadditive, able to generate a better quality material, obtaining a compressive strength of 36.5 kg/cm 2, very close to the normative (40 kg/cm 2 ) and superior to the of commercial blocks (14.35 kg/cm 2 ). Regarding the volumetric weights, the plastic had a good performance as it managed to reduce the weight by 20%, while the use of the nanoadditive waterproofing decreased by 25% of water absorption. The block of the current research was twice as expensive as the traditional, even if production is tripled, as it was reduced to only $ 0.06 (8%). However, in comparison with the industrially elaborated procedure, the costs are very similar.

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Section: Concrete Block Buildingmentioning

confidence: 99%

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Gonzagaa¹,

Carrillo²,

Bedón³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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“…At present, y ash is mainly utilized in the construction industry, such as brick, cement, building llers etc. (Shi et al, 2019). But in this study, the CFA was used as ller material in the rubber and plastic to utilized the CFA as maximum, because CFA is cheaper ller material instead of others ller materials.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Coal Fly Ash And Its Environmentally Friendly Use In Rubber And Plastic Industry

Hussain

Lizhen

Wang

et al. 2021

Preprint

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Coal power plants are the major contributor of electricity but these power plants are also producing waste in the form of coal fly ash (CFA). However, it can cause high risk of environmental pollution and pulmonary diseases in humans. Plastic waste is also a problematic waste for many countries in terms of its reuse and recycling. Therefore, this study aims to reuse the waste product (CFA) of coal power plants in rubber conveyer belt instead of calcium carbonate or talcum powder and in recycling of plastic propylene as bonding filler material instead of barium sulfate to increase the durability of plastic products and reduce cost, CFA waste and plastic waste. For this purpose, CFA was treated by different pulverization techniques for the production of conveyor belt. The study found that the most favorable technique was shear based pulverization technique. Application of CFA with rubber was compared with two different chemicals (calcium carbonate and talcum powder) and found that the elongation at break of conveyor belt was 35% increased and abrasion volume was 64% reduced by using treated CFA. Furthermore, CFA was used in molten mass of plastic instead of barium sulfate and the results showed that the use of CFA has improved the dimensional stability of plastic material reducing the cost per ton by 2410 CNY. The study concluded that the performance was increased by applying CFA with a reduction in price as compared to other chemicals.

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“…At present, y ash is mainly utilized in the construction industry, such as brick, cement, building llers etc. (Shi et al, 2019). But in this study, the CFA was used as ller material in the rubber and plastic to utilize the CFA as maximum, because CFA is cheaper ller material instead of other ller materials.…”

Section: Introductionmentioning

confidence: 99%

Treatment of coal fly ash and its environmentally friendly use in the rubber and plastic industries

et al. 2023

View full text Add to dashboard Cite

Coal power plants are the major provider of electricity, but these power plants are also producing waste in the form of coal y ash (CFA). However, it can cause high risk of environmental pollution and pulmonary diseases in humans. Plastic waste is also a problematic waste for many countries in terms of its reuse and recycling. Therefore, this study aims to reuse the waste product (CFA) of coal power plants in rubber conveyor belt instead of calcium carbonate or talcum powder and in recycling of plastic propylene as bonding ller material instead of barium sulfate to increase the durability of plastic products and reduce cost, CFA waste and plastic waste. For this purpose, CFA was treated by different pulverization techniques for the production of conveyor belts. The study found that the most favorable technique was shear based pulverization technique. Application of CFA with rubber was compared with two different chemicals (calcium carbonate and talcum powder) and found that the elongation at break of conveyor belt was 35% increased and abrasion volume was 64% reduced by using treated CFA. Furthermore, CFA was used in molten mass of plastic instead of barium sulfate and the results showed that the use of CFA has improved the dimensional stability of plastic material reducing the cost per ton by 2410 CNY. The study concluded that the performance was increased by applying CFA with a reduction in price as compared to other chemicals.

show abstract

Life cycle assessment of autoclaved aerated fly ash and concrete block production: a case study in China

Cited by 31 publications

References 24 publications

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Treatment of Coal Fly Ash And Its Environmentally Friendly Use In Rubber And Plastic Industry

Treatment of coal fly ash and its environmentally friendly use in the rubber and plastic industries

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