Environmental impact of highway construction and repair materials on surface and ground waters

Azizian, Mohammad F.; Nelson, Peter O.; Thayumanavan, Pugazhendhi; Williamson, Kenneth

doi:10.1016/s0956-053x(03)00024-2

Cited by 99 publications

(36 citation statements)

References 10 publications

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“…Waste tires are not easily disposed of and lead to great threat to public health and environment. Many solutions have been proposed for reuse of scrap tires [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture

Wei

Jiao

2017

Advances in Materials Science and Engineering

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Asphalt mixture is susceptible to moisture damage under the effect of freeze-thaw (F-T) cycles. In this paper, crumb rubber (CR) was used to modify stone mastic asphalt (SMA) and the effects of diatomite and styrene butadiene styrene (SBS) on antifreezing performances of crumb rubber modified SMA (CRSMA) were investigated. Regression analysis and modified grey model (MGM) were used to construct the prediction models for properties of modified mixtures. CRSMA, CR and diatomite modified SMA (CRDSMA), and CR and SBS modified SMA (CRSSMA) were prepared in laboratory, respectively. Process of F-T cycles was designed. Air void, indirect tensile strength (ITS), and indirect tensile stiffness modulus (ITSM) were measured to evaluate the antifreezing performances of CRSMA, CRDSMA, and CRSSMA. Results indicate that air voids increase with the increasing of F-T cycles. ITS and ITSM all decrease with the increasing of F-T cycles. The addition of diatomite and SBS can reduce the air void and improve the ITS and ITSM of CRSMA. CRSSMA presents the lowest air void, highest tensile strength, and largest stiffness modulus, which reveals that CRSSMA has the best F-T resistance among three different kinds of mixtures. Moreover, MGM (1, 2) models present more favorable accuracy in prediction of air void and ITS compared with regression ones.

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“…Waste tires are not easily disposed of and lead to great threat to public health and environment. Many solutions have been proposed for reuse of scrap tires [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture

Wei

Jiao

2017

Advances in Materials Science and Engineering

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“…In addition to the environmental risks of these lesions, another reason for recycling them is the loss of mineral resources [4,5]. The aim of this study is to find a method for removal and recycling of mentioned lesions, for instance artificial stone production.…”

Section: Introductionmentioning

confidence: 99%

Effect of inorganic compound on artificial stones’ properties

Sarami

Mahdavian

2015

Int J Ind Chem

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Many natural mines of decorative stones have been seen in the mountainous areas of the province Lorestan (Iran). Due to the traditional harvesting methods, these processes cause irreparable environmental damages. The formulation of decorative stone consists of travertine stone (TS) and marmarit stone (MS) with stone seeds 8-200 and 10-200. Cement, water, unsaturated polyester resin and fillers are used in the production of artificial stone composites from lesions of stone factory. The mechanical properties of TS with grain of size 10-200 are better than other grains and stones. The compressive strength of the samples was increased by reducing water content to 25 % and increase of unsaturated polyester resin percentage to 12 %. To improve the properties of the samples and minimization of their pores, we used fillers such as calcium carbonate, silica, silane, titanium dioxide and zinc oxide. Calcium carbonate causes softening and loss of the composite samples. The results showed that use of the fillers including micro-silica, silane and titanium dioxide increases mechanical properties and eliminated close to all pores significantly. Unlike the concrete, artificial stone composite obtained in the absence of water pool showed better properties that increase with time.

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“…[6][7][8] Among them, the road pavement is the mainly application of waste tire powder (WTP). 9 That is because this road pavement material WTP will enhance the durability and functional properties of the road, no matter in dry or wet mixing method. 1 Here, we must mention that ''durability'' of WTP-paved road means better wear and ultraviolet resistance than that of butylene-styrene copolymer.…”

Section: Introductionmentioning

confidence: 99%

“…1 Here, we must mention that ''durability'' of WTP-paved road means better wear and ultraviolet resistance than that of butylene-styrene copolymer. [7][8][9][10][11] Furthermore, WTP-paved road contributes the road with perfect noise reduction. 1,11 Accordingly, WTP has been recognized as a superior resource instead of solid massive waste.…”

Section: Introductionmentioning

confidence: 99%

Compatibilizer in waste tire powder and low‐density polyethylene blends and the blends modified asphalt

Ouyang

Gao

Shi

et al. 2011

J of Applied Polymer Sci

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With the increasing ratio of waste tire powder (WTP) to low-density polyethylene (LDPE), the hardness and tensile strength of the WTP/LDPE blends decreased while the elongation at break increased. Five kinds of compatibilizers, such as maleic anhydride-grafted polyethylene (PE-g-MA), maleic anhydride-grafted ethylene-octene copolymer (POE-g-MA), maleic anhydridegrafted linear LDPE, maleic anhydride-grafted ethylene vinyl-acetate copolymer, and maleic anhydride-grafted styrene-ethylene-butylene-styrene, were incorporated to prepare WTP/LDPE blends, respectively. PE-g-MA and POE-g-MA reinforced the tensile stress and toughness of the blends. The toughness value of POE-g-MA incorporating blends was the highest, reached to 2032.3 MJ/m 3 , while that of the control was only 1402.9 MJ/m 3 . Therefore, POE-g-MA was selected as asphalt modifier. The toughness value reached to the highest level when the content of POE-g-MA was about 8%. Besides that the softening point of the modified asphalt would be higher than 60 C, whereas the content of WTP/LDPE blend was more than 5%, and the blends were mixed by stirring under the shearing speed of 3000 rpm for 20 min. Especially, when the blend content was 8.5%, the softening point arrived at 82 C, contributing to asphalt strength and elastic properties in a wide range of temperature. In addition, the swelling property of POE-g-MA/WTP/LDPE blend was better than that of the other compalibitizers, which indicated that POE-g-MA /WTP/ LDPE blend was much compatible with asphalt. Also, the excellent compatibility would result in the good mechanical and processing properties of the modified asphalt.

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Environmental impact of highway construction and repair materials on surface and ground waters

Cited by 99 publications

References 10 publications

Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture

Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture

Effect of inorganic compound on artificial stones’ properties

Compatibilizer in waste tire powder and low‐density polyethylene blends and the blends modified asphalt

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