Utilization of municipal solid waste incineration bottom ash in blended cement

Li, Xiangguo; Lv, Yang; Ma, Baoguo; Chen, Quan-Bin; Yin, Xu; Jian, Shouwei

doi:10.1016/j.jclepro.2012.03.038

Cited by 264 publications

(79 citation statements)

References 17 publications

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“…It is apparent that with the addition of WBA, the height of the early rate peak is reduced, and the time required to reach the maximum rate is simultaneously extended. These imply that the hydration of cement is slightly retarded by the additional WBA, which is in line with the results presented in [56,57]. From Table 2 and Fig.…”

Section: Hydration Process Of the Uhpfrc With Wbasupporting

confidence: 91%

A study of multiple effects of nano-silica and hybrid fibres on the properties of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) incorporating waste bottom ash (WBA)

Tang

Spiesz

et al. 2014

Construction and Building Materials

138

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Section: Hydration Process Of the Uhpfrc With Wbasupporting

confidence: 91%

A study of multiple effects of nano-silica and hybrid fibres on the properties of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) incorporating waste bottom ash (WBA)

Tang

Spiesz

et al. 2014

Construction and Building Materials

138

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“…Reclaimed asphalt [1], which is of great importance for conserving resources and protecting the environment, is one of the largest fractions of recycled raw materials used in road construction [2][3][4]. Rejuvenators are employed in many cases to improve the flexibility, which means better stress relaxation and softer properties of such aged reclaimed asphalt.…”

Section: Introductionmentioning

confidence: 99%

Study of the Diffusion of Rejuvenators and Its Effect on Aged Bitumen Binder

Xiao

Wang

et al. 2017

Applied Sciences

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Aged asphalt mixture is heavily involved in pavement maintenance and renewed construction because of the development of recycling techniques. The aged bitumen binder has partially lost its viscous behavior. Rejuvenators are therefore designed and used in this recycling procedure to enhance the behavior of such aged reclaimed bitumen. However, tests have not yet been clearly specified to understand the diffusion characteristics of rejuvenators in aged bitumen. In this research, molecular dynamic simulation is proposed and conducted with Materials Studio software to study the diffusion behavior of rejuvenators in aged bitumen at the molecular level. Two rejuvenators, named R-1 and R-2, were included. The difference between these two rejuvenators is their chemical composition of C=O. The diffusion coefficient is determined by studying the molecular movement. Results illustrate that the proposed models can be used to study the diffusion of rejuvenators in aged bitumen sufficiently. In the meantime, a dynamic shear rheometer (DSR) is used to evaluate the recovery influence on aged bitumen resulting from rejuvenators. The experimental results strengthen the model simulations and indicate that the aging index of bitumen has a significant influence on the rejuvenating effect. Research results indicate that rejuvenators have a sufficient rejuvenating effect on the long-term aged bitumen and a limited effect on short-term aged bitumen.

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“…MSWI ash has also been studied as a possible cementitious material (Pecqueur et al 2001;Li et al 2012;Lam et al 2010). Juric et al (2006) introduced 15 wt% of BA in the binder and 23 wt% of recycled aggregate in concrete and obtained a 28-day compressive strength of 40 MPa.…”

Section: Introductionmentioning

confidence: 99%

Optimal Use of MSWI Bottom Ash in Concrete

Zhang

Zhao

2014

Int J Concr Struct Mater

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An experimental investigation was carried out to evaluate the mechanical properties of concrete mixtures in which coarse aggregate was partially (30, 50 or 70 %) replaced with pre-washed municipal solid waste incineration (MSWI) bottom ash. Results indicated that bottom ash reduced the compressive strength, elastic modulus, and levels of heavy metals in leachate when used as a replacement for gravel, and that the maximum amount of MSWI bottom ash in concrete should not exceed 50 %. To analyze the effect mechanism of bottom ash in concrete, the degree of hydration and the following pozzolanic reaction characterized by the pozzolanic activity index, and the porosity distribution in cement mortar. The study indicates that improved properties of concrete are not solely later strength gain and reduced levels of heavy metals in leachate but also the progression of pozzolanic reactions, where a dense structure contains a higher proportion of fine pores that are related to durability.

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Utilization of municipal solid waste incineration bottom ash in blended cement

Cited by 264 publications

References 17 publications

A study of multiple effects of nano-silica and hybrid fibres on the properties of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) incorporating waste bottom ash (WBA)

A study of multiple effects of nano-silica and hybrid fibres on the properties of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) incorporating waste bottom ash (WBA)

Study of the Diffusion of Rejuvenators and Its Effect on Aged Bitumen Binder

Optimal Use of MSWI Bottom Ash in Concrete

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