The Investigation of Microstructures and Situ Thermal Aging Mechanism of Organic Rectorite Modified Bitumen

Du, Panfeng; Zhang, Henglong; Xu, Hongbin

doi:10.1080/10916466.2013.829857

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…In the last few years, layered clays have attracted attention to retard aging process of asphalt binder. These cationic layered clays include kaolinite [1], montmorillonite [2], rectorite [3], and vermiculite [4]. Compared with these cationic layered silicates, an anionic clay called layered double hydroxide (LDH) can be incorporated with organic anions more easily [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Zn/Al Layered Double Hydroxide Containing 2-Hydroxy-4-n-octoxy-benzophenone on UV Aging Resistance of Asphalt

Peng

Dai

et al. 2015

Advances in Materials Science and Engineering

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UV radiation is a main factor to reduce the service life of asphalt pavement due to the UV aging of asphalt binder. To obtain enhanced UV aging resistance, an organic UV absorber called 2-hydroxy-4-n-octoxy-benzophenone (HNOB) had been intercalated into an inorganic UV absorber called Zn/Al layered double hydroxide (LDH) to play a combined anti-UV role in asphalt binder. Fourier transform infrared spectroscopy revealed that HNOB anions have been intercalated into the interlayer galleries of Zn/Al-LDH containing HNOB anions (Zn/Al-HNOB−-LDH). X-ray diffraction results of Zn/Al-LDH containingCO32−anions (Zn/Al-CO32--LDH) andZn/Al-CO32--LDH/styrene-butadiene-styrene (SBS) modified asphalt disclosed that asphalt molecules entered into LDH interlayer galleries to form an expanded phase structure. UV-Vis absorbance patterns showed that Zn/Al-HNOB−-LDH has a better capacity of blocking UV light due to the synergetic effect of HNOB and Zn/Al-LDH. The chemical fractions analysis, conventional physical tests, and rheological tests of SBS modified asphalt,Zn/Al-CO32--LDH/SBSmodified asphalt, and Zn/Al-HNOB−-LDH/SBS modified asphalt before and after UV aging testified that Zn/Al-HNOB−-LDH can improve the UV aging resistance of SBS modified asphalt more significantly.

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Section: Introductionmentioning

confidence: 99%

Effect of Zn/Al Layered Double Hydroxide Containing 2-Hydroxy-4-n-octoxy-benzophenone on UV Aging Resistance of Asphalt

Peng

Dai

et al. 2015

Advances in Materials Science and Engineering

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Influence of UV aging on the rheological properties of bitumen modified with surface organic layered double hydroxides

Zhang

et al. 2016

Construction and Building Materials

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Development of empirical model for predicting G∗/Sinδ and viscosity value for nanoclay and Carbon Nano Tube modified asphalt binder

Ashish

Singh

2018

Construction and Building Materials

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The Investigation of Microstructures and Situ Thermal Aging Mechanism of Organic Rectorite Modified Bitumen

Cited by 7 publications

References 11 publications

Effect of Zn/Al Layered Double Hydroxide Containing 2-Hydroxy-4-n-octoxy-benzophenone on UV Aging Resistance of Asphalt

Effect of Zn/Al Layered Double Hydroxide Containing 2-Hydroxy-4-n-octoxy-benzophenone on UV Aging Resistance of Asphalt

Influence of UV aging on the rheological properties of bitumen modified with surface organic layered double hydroxides

Development of empirical model for predicting G∗/Sinδ and viscosity value for nanoclay and Carbon Nano Tube modified asphalt binder

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