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author:

Wu, Nengsen (Wu, Nengsen.) [1] | Ji, Tao (Ji, Tao.) [2] | Huang, Ping (Huang, Ping.) [3] | Fu, Tengfei (Fu, Tengfei.) [4] | Zheng, Xiaoyan (Zheng, Xiaoyan.) [5] | Xu, Qing (Xu, Qing.) [6]

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Abstract:

Sugar cane bagasse ash (SCBA) is the final waste material in the sugar production chain. Due to the pozzolanic characteristic and the abundance, SCBA has been tried to utilized in construction materials. In this study, ecofriendly ultra-high performance concrete (UHPC) was developed with SCBA as a cement replacement. The effects of SCBA on the fluidity, setting time, compressive strength, flexural strength and autogenous shrinkage of UHPC were analyzed. Hydration heat evaluation, X-ray diffraction (XRD), thermogravimetric (TG) analysis, and mercury injection (MIP) were applied to reveal the effects of SCBA on cement hydration, hydration products and pore structure. The results indicate that the application of SCBA in UHPC as a cement replacement not only maintains the compressive strength but also improves the workability and decreases the autogenous shrinkage of UHPC paste. Compared to the control group, UHPC prepared at a 40% replacement rate obtained a good comprehensive performance. Autogenous shrinkage decreased by 24.48%, and the compressive strength was almost the same as that of the control group. This study verifies the technical feasibility of SCBA application as a cement replacement in UHPC and may further promote the utilization of agricultural byproducts in cementitious materials. © 2021 Elsevier Ltd

Keyword:

Bagasse Cements Compressive strength High performance concrete Hydration Pore structure Shrinkage Sugar cane Thermogravimetric analysis

Community:

  • [ 1 ] [Wu, Nengsen]School of Intelligent Construction, Fuzhou University of International Studies and Trade, 28 Yuhuan Road, Changle District, Fuzhou; 350202, China
  • [ 2 ] [Wu, Nengsen]College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou; 350002, China
  • [ 3 ] [Ji, Tao]Department of Civil Engineering, Fuzhou University, 2 Xueyuan Road, University District, Fuzhou; 350108, China
  • [ 4 ] [Huang, Ping]College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou; 350002, China
  • [ 5 ] [Fu, Tengfei]College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou; 350002, China
  • [ 6 ] [Zheng, Xiaoyan]College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou; 350002, China
  • [ 7 ] [Xu, Qing]College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou; 350002, China

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Source :

Construction and Building Materials

ISSN: 0950-0618

Year: 2022

Volume: 317

7 . 4

JCR@2022

7 . 4 0 0

JCR@2023

ESI HC Threshold:91

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 50

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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