Polymer–cement composite based on recycled expanded polystyrene foam waste

Eskander, S.B.; Tawfik, Magda E.

doi:10.1002/pc.21171

Cited by 24 publications

(21 citation statements)

References 12 publications

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“…The justification of this situation because polystyrene itself is a soft particle and unable to resist enormous force when the compression load applied. However, the unique-soft PS beads able to absorb shock and force during compression process, make the foamed cement composite to have longer resisting time before it is fully ruptured [1]. Besides that, it is found that the sample contained more fly ash but less sand has higher compressive strength.…”

Section: Compressive Strength Of Foamed Cement Compositesmentioning

confidence: 99%

“…Nowadays, cement composite had been chosen to be one of the most important components to produce foamed cement composites. Basically, cement composite is a mixture which use cement as a basic material to mix up with water at certain proportion to form a composite [1] such as mortar which widely used for plastering and other building works. Owing to waste concern, the sustainability construction industry becomes the priority all over the world due to the detrimental effects happened.…”

Section: Introductionmentioning

confidence: 99%

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Untitled

2019

AJTVE

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Foamed cement composites with lightweight properties and strength improvement have drawn the attention amongst the researchers towards sustainability concern in the construction industry. This paper presents a study of the compressive strength in foamed ce ment composites, which has utilized fly ash as waste material and polystyrene beads in the various mixture proportions. In the research, two sets of A and B samples with the same mixture proportions have been produced but consumed the different content of polystyrene beads of 0.1 wt. % and 0.3 wt. % respectively. Two other sets of A and B also have the same proportions, but the samples are sent into the furnace to decompose the polystyrene beads before being compress. According to the results, the decomposed samples with the addition of 0.1 wt. % of polystyrene beads were found to have the highest compressive strength as compared to 0.3 wt. %. Besides that, the highest content of fly ash added in the mixture has also contributed to the best results of compressive strength in the foamed cement composites as well. Therefore, the decomposed of 0.1 wt. % polystyrene beads are more suitable to be used in order to produce stronger foamed cement composite and at the same time will minimize the usage of sand, reuse the waste material, and preserve the environmental ecology.

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Section: Compressive Strength Of Foamed Cement Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Untitled

2019

AJTVE

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“…It is worth to state that, all the obtained spectra showed, nearly, the same bands assignments with very small differences. The following bands could be differentiated [16,[29][30][31]: The absorption by the OH 2 in the Portlandite, Ca(OH) 2 , appears between 3,640 cm 21 and 3,642 cm 21 .…”

Section: Bulk Density Porosity and Water Absorption Of The Fwfmentioning

confidence: 99%

Immobilization of sulfate waste simulate in polymer–cement composite based on recycled expanded polystyrene foam waste: Evaluation of the final waste form under freeze–thaw treatment

Bayoumi

Tawfik

2015

Polymer Composites

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A new polymer–cement composite matrix for solidification and stabilizing of low‐ and intermediate level radioactive sulfate waste, containing high concentration of sulfate as sodium salt (113.16 g/L), had been developed at the inorganic applied chemistry unit, radioisotope department, Egyptian atomic energy authority. The proposed composite is based on ordinary Portland cement and expanded polystyrene recycled from foam wastes. The integrity of the reached final waste forms (polymer–cement composite immobilizing sulfate wastes simulate) was evaluated after subjecting to freeze–thaw (FT) treatment. The cycling was performed for the final waste form at the end of 28 days curing period between (−20°C ± 1) and (60°C ± 1) for 180 days. Mass changes, compressive strength, porosity, and bulk density were determined for the solid blocks at the end of definite increasing FT cycles. To evaluate the changes in the internal structure accompanied the FT cycling, Fourier‐transform infrared, X‐ray diffraction, thermogravimetry, and scanning electron microscopy tools were used. Based on the data obtained, it could be stated that the proposed polymer–cement composite can withstand the aggressive conditions exist during the disposal process and candidate it can be used adequately for incorporating the sulfate waste concentrate originated from the boiling water reactors. POLYM. COMPOS., 38:637–645, 2017. © 2015 Society of Plastics Engineers

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“…Expanded polystyrene foam wastes considered as one of the most issues of ecological problems, especially ocean pollution, because they are nonbiodegradable polymers and hardly decomposed in nature. It was reported that about 25% of total floating fragments in the North Pacific, for example, were foam wastes …”

Section: Introductionmentioning

confidence: 99%

“…The two main alternatives for managing polymer wastes are mechanical recycling and energy recycling, where they are incinerated . Environmental argumentations, such as toxic emissions, are building up a public resistance against the later process …”

Section: Introductionmentioning

confidence: 99%

Hard wood‐composites made of rice straw and recycled polystyrene foam wastes

Tawfik

Eskander

Nawwar

2017

J of Applied Polymer Sci

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The submitted work discussed the possibility of using two of the most problematic wastes to formulate an added-value hard wood-composite (HWC). The lignocellulosic rice straws (RS) fibers (as reinforced filler) and recycled expanded polystyrene foam (PS) wastes (as dispersed polymer matrix), were used to formulated the hard wood product applying the hot press technique. The air dried RS was added to the molten PS at increasing ratios (30-70% mass:mass), and the reached HWC sheet was subjected to tensile strength, water absorption and acoustic resistance characterizations. Based on the experimental data, it was found that increasing the RS contents accompanied with a diminish in the tensile strength value by about 50% at 70% RS compare to that at 30% RS. To improve the adhesion between the hydrophilic filler RS and the hydrophobic PS matrix, maleated PS graft (PS-g-MA) was prepared and added at the expanse of the PS content, to formulate an additional wood-composite (HWCg) aiming to have better mechanical and dimensional stability features. Results obtained indicated that increasing the coupling agent content, keeping the RS added constant, enhance the tensile strength feature in addition, reduced the water absorption for the final products by more than 45%. The data obtained suggested that, it can create added-value hard wood composites entirely from the two nominated problematic wastes. In addition to the value gained by the environment, the reached hard wood products record acceptable mechanical characterization, dimensional stability and sound resistance properties that qualified it to replace the natural wood in many daily applications.

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Polymer–cement composite based on recycled expanded polystyrene foam waste

Cited by 24 publications

References 12 publications

Untitled

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Immobilization of sulfate waste simulate in polymer–cement composite based on recycled expanded polystyrene foam waste: Evaluation of the final waste form under freeze–thaw treatment

Hard wood‐composites made of rice straw and recycled polystyrene foam wastes

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