Results 1 to 10 of about 41,793 (216)

Evolution law of microporous structure in cement asphalt (CA) mortar under the action of polyurethane polycarboxylates [PDF]

Scientific Reports
In this paper, Cement Asphalt (CA) mortar specimens mixed with polyurethane polycarboxylate and ordinary commercial polycarboxylate water-reducing agents have been prepared. The pore structure has been determined by scanning electron microscopy (SEM) and
Shuncheng Xiang, Ming Yuan, Xin Yang, Lulu Li, Yingli Gao, Haotian Yu, Huan Zhou, Tingxiang Zheng, Jin Zhang, Zhen Jiang   +9 more
doaj   +2 more sources

Influences of cement asphalt emulsified mortar construction on track slab geometry status [PDF]

Railway Sciences, 2023
Purpose – The construction of cement asphalt (CA) emulsified mortar can obviously disturb the slab status after the fine adjustment. To decrease or eliminate the influence of CA mortar grouting on track slab geometry status, the effects of grouting ...
Tao Wang, Shaoliang Wu, Hengqiong Jia, Zhao Wei, Haiyan Li, Piyan Shao, Shanqing Peng, Yi Shi   +7 more
doaj   +1 more source

Petrographically quantifying the damage to field and lab-cast mortars subject to freeze-thaw cycles and deicer application

Journal of Infrastructure Preservation and Resilience, 2021
Although calcium oxychloride (Ca-Oxy) is known to damage cementitious materials exposed to calcium chloride (CaCl2) deicers, there is little direct observation of Ca-Oxy in the field due to its instability.
Chunyu Qiao, Nima Hosseinzadeh, Prannoy Suraneni, Sihang Wei, David Rothstein   +4 more
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Experimental Investigation of Stochastic Mechanical Behavior of Cement Emulsified Asphalt Mortar under Monotonic Compression

Applied Sciences, 2020
Experimental investigation on cement emulsified asphalt mortar (CA mortar) under uniaxial monotonic compression by taking into account the stochastic properties were investigated.
Xiao Li, Zhiwu Yu, Peng Liu, Zhi Shan, Zilong Meng   +4 more
doaj   +1 more source

Research on the dynamic mechanical properties of cement emulsified asphalt mortar for high-speed railway: A review [PDF]

AIP Advances
Cement emulsified asphalt mortar (CA mortar), as one of the key structural layers of slab ballastless track for high-speed railways, consists of cement, emulsified asphalt, sand, water, and appropriate additives, etc., which plays the roles of adjusting,
Hao Xu, Jiayin Chen, Weixing Liu, Kaize Xie, Kan Huang   +4 more
doaj   +1 more source

A novel treatment method for recycled aggregate and the mechanical properties of recycled aggregate concrete

Journal of Materials Research and Technology, 2021
Establishing an effective method to enhance the adhesion of mortar on recycled concrete aggregate (RCA) is key to the utilization of RCA. In this paper, a novel and simple approach for strengthening the mortar layer of RCA by treatment with a ...
Xianfeng Wang, Xiaosheng Yang, Jun Ren, Ningxu Han, Feng Xing   +4 more
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Study on physical and mechanical properties of cement asphalt emulsified mortar under track slab [PDF]

Railway Sciences
Purpose – During the construction process of the China Railway Track System (CRTS) I type filling layer, the nonwoven fabric bags have been used as grouting templates for cement asphalt (CA) emulsified mortar.
Tao Wang, Shaoliang Wu, Hengqiong Jia, Shanqing Peng, Haiyan Li, Piyan Shao, Zhao Wei, Yi Shi   +7 more
doaj   +1 more source

Preliminary Study on Assessing Delaminated Cracks in Cement Asphalt Mortar Layer of High-Speed Rail Track Using Traditional and Normalized Impact–Echo Methods

Sensors, 2020
The severe deterioration of a cement asphalt (CA) mortar layer may lead to the movement of the upper concrete slab and impair the safety of the speedy train.
Ying-Tzu Ke, Chia-Chi Cheng, Yung-Chiang Lin, Yi-Qing Ni, Keng-Tsang Hsu, Tai-Tung Wai   +5 more
doaj   +1 more source

The Mechanical and Thermal Properties of Cement CAST Mortar/Graphene Oxide Composites Materials

International Journal of Concrete Structures and Materials, 2022
This paper presents the influence of the graphene oxide (GO) sheet contents at conditions of 0, 0.01, 0.03, 0.05, and 0.1 wt% on the mechanical and thermal properties of GO/CAST 11 LW mortar (GMT) composites for heat insulating brick.
Thidatip Janjaroen, Sunisar Khammahong, Wattana Tuichai, Attaphol Karaphun, Chaiwat Phrompet, Chaval Sriwong, Chesta Ruttanapun   +6 more
doaj   +1 more source

Experimental Research on Compression Properties of Cement Asphalt Mortar due to Drying and Wetting Cycle

Advances in Materials Science and Engineering, 2014
Uniaxial compression test of cement asphalt (CA) mortar specimens, due to drying and wetting cycle of 0, 2, 4 and 8 times, is carried out by using the electronic universal test machine, with the strain rate ranging from 1 × 10−5 s−1 to 1 × 10−2 s−1.
Ping Wang, Hao Xu, Rong Chen, Jingmang Xu, Xiaohui Zeng   +4 more
doaj   +1 more source