Effects of fibers on mechanical properties and freeze-thaw resistance of phosphogypsum-slag based cementitious materials

Hua, Sudong; Wang, Kejin; Xiao, Yao; Xu, Wenyuan; He, Yuehui

doi:10.1016/j.conbuildmat.2016.06.003

Cited by 49 publications

(13 citation statements)

References 23 publications

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“…In these three types of fibers, the PP fiber shows a good dispersion condition and has the best bonding strength with the matrix. 1.35 vol.% of PP fiber increased the flexural strength two times and impact resistance 7 times [72].…”

Section: Sustainable Compositesmentioning

confidence: 93%

Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts

et al. 2021

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Phosphogypsum (PG) is an industrial waste from the production of phosphoric acid and phosphate fertilizer. Disposal and landfill of PG pose significant environmental problems due to its hazardous components. Although many researchers have explored the possibility of PG recycling, challenges still exist before it can be high-effectively reused. In particular, a great deal of recent attention has been attracted to explore using PG as raw material to manufacture sustainable composites. The impurities movement, recycling efficiency, and environmental impacts have to be further investigated. This review article summarized the state of the art of the purification process, application areas, and the environmental impacts of PG waste. The main challenges and potential application approaches were discussed. This article is focused on reviewing the details of the PG reusing which benefits the readers on learning the knowledge from previous efforts. The main challenges of reusing PG were discussed from the chemical, physical, and materials perspectives.

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Section: Sustainable Compositesmentioning

confidence: 93%

Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts

et al. 2021

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“…Процесс диффузии -этап, начинающийся от внедрения продукта на рынок, до насыщения рыночного сегмента и может продолжаться от нескольких дней или недель до нескольких лет. Новаторы нуждаются в быстром внедрении своей инновации, в том числе с целью опережения аналогичных конкурирующих продуктов, технологий и процессов [10,11].…”

Section: результаты исследования и их обсуждениеunclassified

Diffusion and Containment Factors of Innovative Technology for Obtaining Building Materials From Phosphogypsum in the Industry

Kukin¹

2020

Вестник Алтайской академии экономики и права

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“…However, these techniques, owing to their temporary effects, cannot fundamentally solve the long-term waterproofing and moisture-proofing problems of gypsum products. In addition, the mechanical strength of gypsum is relatively low, and various fibers are usually used as reinforcing materials in gypsum products to improve their mechanical properties [32][33][34][35][36][37]. However, most of these above-mentioned studies were based on compact gypsum.…”

Section: Introductionmentioning

confidence: 99%

Proportion and Performance Optimization of Lightweight Foamed Phosphogypsum Material Based on an Orthogonal Experiment

et al. 2022

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A lightweight foam phosphogypsum material (LFPM) was prepared by multi-factor orthogonal and optimization experiments. The effects of foam, quicklime, silica fume and cement on the mechanical and physical properties of this LFPM were studied. The orthogonal experimental results showed that the silica fume content exhibited the most significant effect on the strength of this material, and the cement content exhibited the most obvious influence on the softening coefficient. The comprehensive index analysis indicated that the LFPM with 8% foam, 3.5% quicklime, 3% silica fume and 15% cement was selected as the optimal proportion. The 28 d compressive strength and flexural strength were 3.15 and 0.97 MPa, respectively. The dry density was 809.1 kg/m3, and the 28 d softening coefficient was 0.628. The optimization experimental results showed that the strength and dry density of the sample increased first and then decreased with an increase in the foam stabilizer content. The strength and dry density increased, and water absorption decreased with increasing waterproof agent content.

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Effects of fibers on mechanical properties and freeze-thaw resistance of phosphogypsum-slag based cementitious materials

Cited by 49 publications

References 23 publications

Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts

Low-Carbon Sustainable Composites from Waste Phosphogypsum and Their Environmental Impacts

Diffusion and Containment Factors of Innovative Technology for Obtaining Building Materials From Phosphogypsum in the Industry

Proportion and Performance Optimization of Lightweight Foamed Phosphogypsum Material Based on an Orthogonal Experiment

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