Shaopeng Wu

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Chinese researchers have commenced a great deal of researches on the development of application fields of basic oxygen steel making furnace slag (BOF slag) for many years. Lots of new applications and properties have been found, but few of them in asphalt mixture of road construction engineering. This paper discussed the feasibility of BOF steel slag used(More)
Layered double hydroxides (LDHs) are an ultraviolet-light (UV) resistant material. In this study, LDHs were used to modify bitumen. The optical and UV aging properties of LDHs modified bitumen were investigated. Firstly, the thin films of bitumen, with and without LDHs, were prepared. By using the UV-Vis spectrophotometer, absorbance, reflectance, and(More)
Oxidative ageing as an inevitable process in practical road paving has a great effect on the properties of polymer-modified asphalts (PMAs). In this article, the effect of short-term and long-term oxidative ageing on the rheological, physical properties and the morphology of the styrene-butadiene-styrene (SBS)- and storage-stable SBS/sulfur-modified(More)
Layered double hydroxides (LDHs) are an ultravioletlight (UV)-resistant material. In this study, two types of LDHs (Mg-Al-LDHs and Zn-Al-LDHs) were applied to modify bitumen by melt-blending. The effect of ultraviolet aging on the rheology and chemistry of LDH-modified bitumen was studied by means of dynamic shear rheometer (DSR), thin-layer chromatography(More)
Silicone rubber is acknowledged to show perfect properties, such as weather resistance, nontoxic, tearing strength over a broad temperature region, high durable and so on. The silicone rubber in this study was used as a joint material in the road joint. The preparation and the mechanism of the silicone rubber were introduced. The mechanical properties of(More)
Big span bridge has become more and more while the configuration become very innovative as pavement traffic development in China especially cement concrete bridge. Therefore the bridge deck pavement bonding layers are emphasized much more as an important part of bridge traffic system, which can mitigate travel impact to bridge and magnify stationary or(More)
BACKGROUND In recent years, ultraviolet (UV) ageing of asphalt has attracted worldwide attention from researchers in the asphalt field. The UV radiation can result in the ageing of asphalt and thus influence its performance. So far, a variety of UV blocking materials have been investigated. AIM In this paper, layered double hydroxides (LDHs) were(More)
Ceramic fiber, with a major composition of Al₂O₃ and SiO₂, has advantages of stability at relatively high temperature, big specific surface area and resistance to external mechanical vibration. It has the potential contribution of improving the rutting resistance and temperature sensitivity of modified asphalt binder by proper modification design. In this(More)
BACKGROUND Laboratory research suggested that basic oxygen furnace (BOF) slag-based asphalt mixture was a functional material. However, the BOF slag aggregate's quality was difficult to control when it was heavily used in entity engineering. AIMS The primary objective of this research was to evaluate the functional performances of asphalt mixture(More)
Due to great temperature susceptivity, aging and inferior fatigue resistance, the serviceability of asphalt materials has been limited in same degree. The modification becomes an effective way to improve the performance of asphalt material. The modification applying nanoclay can not only improve the properties of bitumen but also lower costs to a great(More)