Bonding characteristics of grouting layer in Prefabricated Cement Concrete Pavement

Zhang, Jun; Weng, Xingzhong; Yang, Bohan; Li, Yifeng; Liu, Junzhong; Jiang, Le

doi:10.1016/j.conbuildmat.2017.04.041

Cited by 21 publications

(10 citation statements)

References 13 publications

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“…In this context, one of the keys to winning a war lies in the ability to provide emergency repair for an airport under attack, open another front based on combat intention, and ensure the successful takeoff of warplanes. [49][50][51][52] Currently, the emergency repair of airports primarily relies on the combination of flying object refill, graded broken stones, roller compacted concrete, and other base courses with glass FRP pavement slabs and assembled aluminum pavement slabs. [53][54][55][56][57] However, with the use of cluster bombs, the traditional combat mode based on air bombardment or "spotted attack" by heavy guided munitions has been fundamentally transformed, and the destruction of targets has been characterized by "large scope, serious damage, and long blockade."…”

Section: Emergency Repair and Construction Of Airport Pavementsmentioning

confidence: 99%

Application and research status of concrete canvas and its application prospect in emergency engineering

Zhang

Weng

et al. 2020

Journal of Engineered Fibers and Fabrics

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Concrete Canvas (CC) is a 3D spacer fabric-reinforced cement-based composite, prepared through filling cement-based composite powder into fabric via the porous surface of 3D spacer fabric. When hardened by water, CC forms a water-proof, fire-resistant, and durable concrete layer with outstanding mechanical properties. So far, CC has been applied in inflatable tents, slope protection, structure reinforcement and repair, ditch lining, and other engineering projects, as well as furniture and artwork design. Existing studies on CC primarily focus on the modification and optimization of its component materials, and CC reinforcement using externally bonded FRP and aluminum flakes. CC has a broad application and an enormous application potential in emergency engineering, such as the protection of emergency tents and shelters, emergency repair and construction of airport pavement and positional projects; however, it is necessary to improve the compressive strength, flexural strength, wear resistance, anti-penetration performance, and base course bond performance of CC. To that end, research from the perspectives of modifying CC component materials, reinforcement of CC by externally bonded FRP, the improvement of the anchorage method, and the optimization of anchoring primers can be carried out.

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Section: Emergency Repair and Construction Of Airport Pavementsmentioning

confidence: 99%

Application and research status of concrete canvas and its application prospect in emergency engineering

Zhang

Weng

et al. 2020

Journal of Engineered Fibers and Fabrics

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“…Generally, the currently available grouting materials can be mainly divided into inorganic and organic grouting materials. The inorganic grouting material mainly includes cement [4,5], waterglass [6,7], and clay [8]. The organic grouting materials such as polyurethane [9,10,11], epoxy resin [12], acrylamide [13], methacrylate [14], acrylate [15], and lignin [16] have been extensively explored as well.…”

Section: Introductionmentioning

confidence: 99%

Polyurethane/Red Mud Composites with Flexibility, Stretchability, and Flame Retardancy for Grouting

et al. 2018

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Flexibility, stretchability, and flame retardancy are of ever increasing importance in constructing grouting materials. Herein, a simple and effective strategy to make organic-inorganic composite grouting material in a “flexible, stretchable, and flame retardant” way was based on the excellent synergistic interactions among polyurethane prepolymer, red mud, polyethylene glycol, and trimethylolpropane. The resultant polyurethane/red mud composite grouting material with three-dimensional network structure presented a favorable flexibility, desirable compressive strength of 29.2 MPa at 50% compression state, and a good elongation at 15.1%. The grouting material was mainly composed of amorphous polyurethane and crystalline red mud, and its probable formation mechanism was reaction of prepolymer with H2O, polyethylene glycol and trimethylolpropane under vigorous stirring in the presence of catalyst. Furthermore, the grouting material possessed favorable thermal stability, flame retardancy and repairment performance for roadway cracks. This work may open a simple and convenient avenue for the massive engineering application of red mud and preparation of flexible organic-inorganic hybrid grouting material.

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“…Until now, tremendous efforts have been made to improve the performance of polyurethane material. Some inorganic materials such as cement , waterglass , limestone , montmorillonite , mortar , hydrotalcite , concrete , silica , and sand‐clay mixture have been extensively explored for organic–inorganic hybrid polyurethane composites. Compared with the neat polyurethane material, the polyurethanes modified by the inorganic materials present low cost, better flame retardancy and mechanical properties [19].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and performance of a polyurethane hybrid composite with waste red mud

et al. 2018

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Polyurethane-based organic-inorganic hybrid composite is attracting increasing attention due to its excellent performance and low cost. Herein, a facile and effective strategy has been proposed for the fabrication of polyurethane/red mud hybrid composite by anchoring red mud particles into a polyurethane frame. The resulting hybrid composite was mainly composed of amorphous polyurethane and crystalline red mud, and its probable formation mechanism was proposed. The polyurethane/ red mud composite with micron particles uniformly embedded into the organic phase exhibited satisfactory mechanical performance, and its compressive and flexural strength could come up to 38.6 and 12.4 MPa after complete curing, respectively. Moreover, the hybrid composite displayed impressive thermal stability, flame retardancy, storage stability, and reinforcement performance. The obtained polyurethane/red mud composite shows potential applications in multiple fields (roadway, dam, underground engineering, etc.). POLYM. COMPOS., 40:2424-2431, 2019

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Bonding characteristics of grouting layer in Prefabricated Cement Concrete Pavement

Cited by 21 publications

References 13 publications

Application and research status of concrete canvas and its application prospect in emergency engineering

Application and research status of concrete canvas and its application prospect in emergency engineering

Polyurethane/Red Mud Composites with Flexibility, Stretchability, and Flame Retardancy for Grouting

Fabrication and performance of a polyurethane hybrid composite with waste red mud

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