Polypropylene Fiber Reinforced Concrete for Rigid Airfield Pavement

Merhej, Tammam; Cheng, Liangliang; Feng, Decheng

doi:10.4028/www.scientific.net/amr.228-229.627

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The addition of PS and MP led to the greatest enhancement effect on impermeability and frost resistance, respectively. Merhej et al [ 3 ] analyzed the effects of polypropylene fibers (PP) on the compressive strength, modulus of rupture, load–deflection curve, and flexural toughness of airport pavement concrete. In light of the fatigue failure of airport pavement concrete, Wang et al [ 4 ] investigated the impact of polyoxymethylene fiber (POM) on the flexural fatigue performance of airport pavement concrete.…”

Section: Introductionmentioning

confidence: 99%

Fracture Behavior of Basalt Fiber-Reinforced Airport Pavement Concrete at Different Strain Rates

Xia

Yan

et al. 2022

Materials

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As a commonly used surface structure for airport runways, concrete slabs are subjected to various complex and random loads for a long time, and it is necessary to investigate their fracture performance at different strain rates. In this study, three-point bending fracture tests were conducted using ordinary performance concrete (OPC) and basalt fiber-reinforced airport pavement concrete (BFAPC) with fiber volume contents of 0.2, 0.4, and 0.6%, at five strain rates (10−6 s−1, 10−5 s−1, 10−4 s−1, 10−3 s−1, and 10−2 s−1). Considering parameters such as the peak load, initial cracking load, double K fracture toughness, fracture energy, and critical crack expansion rate, the effects of the fiber volume content and strain rate on the fracture performance of concrete were systematically studied. The results indicate that these fracture parameters of OPC and BFAPC have an obvious strain rate dependence; in particular, the strain rate has a positive linear relationship with peak load and fracture energy, and a positive exponential relationship with the critical crack growth rate. Compared with OPC, the addition of basalt fiber (BF) can improve the fracture performance of airport pavement concrete, to a certain extent, where 0.4% and 0.6% fiber content were the most effective in enhancing the fracture properties of concrete under strain rates of 10−6–10−5 s−1 and 10−4–10−2 s−1, respectively. From the point of view of the critical crack growth rate, it is shown that the addition of BF can inhibit the crack growth of concrete. In this study, the fracture properties of BFAPC were evaluated at different strain rates, providing an important basis for the application of BFAPC in airport pavement.

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Section: Introductionmentioning

confidence: 99%

Fracture Behavior of Basalt Fiber-Reinforced Airport Pavement Concrete at Different Strain Rates

Xia

Yan

et al. 2022

Materials

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“…This method includes chemical etching, flame treatment, corona discharge or microwave radiation [44]. The significant improvement of adhesive capacity is obtained by the deformation of the fibres by crimping or twisting [45,46]. Other interesting option is application of fibrillated fibres with the net-like structure obtained from the polypropylene types [47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Application of Polypropylene Fibrillated Fibres for Reinforcement of Concrete and Cement Mortars

Broda¹

2016

High Performance Concrete Technology and Applications

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Polypropylene fibres have been applied for reinforcement of cement mortars and concrete for many years. The fibres restrict crack propagation and positively affect several concrete parameters. To improve the adhesion of polypropylene to cement matrix, geometrically deformed or modified fibres are commonly used. Good results are obtained by application of fibrillated fibres with the net-like structure obtained from the polypropylene types. The fibrillated polypropylene fibres were produced. The fibres were chopped to specified lengths and used for the reinforcement of concrete and cement mortars. The parameters of fresh concrete and mechanical parameters of reinforced concrete and mortar were determined. It was stated that the fibres do not affect the compressive strength of the reinforced concrete and mortar. The beneficial effect of fibres on the compressive strength of concrete is revealed after freezing and thawing cycles. The fibres influence the bending strength of the mortars. For mortars reinforced with fibrillated fibres a significant increase in the bending strength is observed. The increase in the bending strength results from enhanced interfacial adhesion and mechanical anchoring, which results from opening of the network structure and splitting of fibrillated fibres.

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Study on Impact Resistance of Steel-Polypropylene Fiber Concrete with Toughening Agent

延¹

2022

HJCE

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Polypropylene Fiber Reinforced Concrete for Rigid Airfield Pavement

Cited by 4 publications

References 3 publications

Fracture Behavior of Basalt Fiber-Reinforced Airport Pavement Concrete at Different Strain Rates

Fracture Behavior of Basalt Fiber-Reinforced Airport Pavement Concrete at Different Strain Rates

Application of Polypropylene Fibrillated Fibres for Reinforcement of Concrete and Cement Mortars

Study on Impact Resistance of Steel-Polypropylene Fiber Concrete with Toughening Agent

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