Influence of doping with styrene-butadiene rubber on dynamic and mechanical properties of polymer concrete

Deredas, Kinga; Kępczak, Norbert; Urbaniak, Mariusz

doi:10.1016/j.compstruct.2021.113998

Cited by 15 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, due to its high brittleness, low bending or flexural strength, and lack of seepage resistance and impact resistance, its applications are limited to some extent (Wu and Li 2017;Yuan et al 2021). In order to improve the toughness, flexural strength, impermeability and impact resistance of concrete, polymer and fiber are often added in practical engineering applications (Arezoumandi et al 2018;Wang et al 2020aWang et al , 2020bLi et al 2021;Arruda and Castro 2021;Deredas et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Polymer/Carbon Fiber Co-modification: Dynamic Compressive Mechanical Properties of Carbon Fiber Modified Polymer Reinforced Concrete

Wang,

Bai,

Liu

et al. 2024

ACT

View full text Add to dashboard Cite

To explore the dynamic compressive mechanical properties of carbon fiber modified polymer reinforced concrete (CFMPRC), the 100 mm diameter SHPB (Split Hopkinson Pressure Bar) test system was used to carry out impact compression tests of CFMPRC with different carbon fiber volume content (0.1%, 0.2%, 0.3% and 0.4%). The dynamic stress-strain curves and fracture morphology of CFMPRC under different strain rates (37.7 s -1 to 132.2 s -1 ) were obtained, and the effects of strain rate and carbon fiber content on dynamic compressive strength, deformation and toughness of CFMPRC were analyzed. The results show that the dynamic compressive strength, deformation and toughness of CFMPRC have obvious strain rate strengthening effect and carbon fiber strengthening effect. The dynamic compressive strength, dynamic increase factor (DIF), dynamic peak strain and impact toughness of CFMPRC increase with strain rate gradually. The dynamic compressive mechanical properties of polymer reinforced concrete are improved by adding carbon fiber, and the optimal carbon fiber content is 0.2%. When carbon fiber content is 0.2%, the strain rate sensitivity of CFMPRC is the strongest, and the increase of strength is the maximum. Carbon fiber can bridge the internal cracks of concrete, and shows the co-modification effect with polymer. Polymer can enhance the carbon fiber/concrete matrix interface, which makes carbon fiber exert its effect more effectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Polymer/Carbon Fiber Co-modification: Dynamic Compressive Mechanical Properties of Carbon Fiber Modified Polymer Reinforced Concrete

Wang,

Bai,

Liu

et al. 2024

ACT

View full text Add to dashboard Cite

show abstract

“…They are commonly used in engineering repair and surface waterproof coatings. Commonly used water-based polymer dispersions include styrene–butadiene rubber (SBR) [ 6 ], styrene–acrylate emulsion (SAE) [ 7 ], and epoxy emulsion (EE) [ 8 ]. Many previous studies have shown that the impact of polymer emulsions on cement hydration is mainly related to factors such as their surface charge, functional groups in their molecular structure, and charge density.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Butyl Acrylate Copolymer Emulsion and Its Regulation Effect on Cement Hydration

Mao

Deng

2023

Materials

View full text Add to dashboard Cite

Due to its large volume and poor thermal conductivity, mass concrete is prone to temperature cracking caused by heat release during cement hydration after pouring. To address the issue of temperature cracking in mass concrete, this study utilized emulsion polymerization to prepare polybutyl acrylate (PBA) emulsions. At an optimal dosage of 1.5%, the addition of a PBA emulsion reduced the temperature rise of cement paste by 12.4%. The inhibitory mechanism of a PBA emulsion on cement hydration was analyzed by characterization techniques such as isothermal calorimetry, X-ray diffraction Rietveld full-profile fitting method (XRD), thermogravimetric–differential scanning calorimetry (TG-DSC), and mercury intrusion porosimetry (MIP). The results showed that the C3S content in the cement specimens with 1%, 1.5%, and 2% PBA increased by 13.83%, 23.52%, and 34.65% compared to the blank group, respectively, while the C3A content increased by 92.59%, 79.63%, and 96.30%, respectively. The addition of a PBA emulsion can slow down the hydration rate of C3S and C3A, thereby reducing the temperature rise and fall rate of cement hydration, reducing the peak heat release of the hydration reaction, and ultimately achieving the inhibition of the cement hydration reaction. In addition, the mechanical properties of PBA-modified cement-based materials were also tested. The results show that the addition of PBA can affect the early strength development of cement samples, but has no effect on the strength after 60 days. Therefore, PBA can be used as a hydration temperature rise control material to reduce the risk of temperature cracking in mass concrete.

show abstract

“…Black pollution is a major ecological problem that human beings face after entering the 21st century. The high iteration rate of the automobile industry leads to a large number of waste cars being piled up and unable to be properly recycled, especially rubber products, an important part of automobiles [1][2][3]7,14].…”

Section: Introductionmentioning

confidence: 99%

“…At the beginning of the century, some scholars discussed the feasibility of crushing waste rubber products into aggregate and mixing it into concrete. However, the test results show that the concrete specimen mixed with rubber cannot be used in practical engineering, because the mixing of rubber greatly reduces the strength of concrete [2][3]. Based on this situation, various attempts have been made by scholars to improve the weakening effect of rubber aggregate on mechanical properties of concrete [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Test of compressive strength of rubber ceramsite concrete modified by basalt fiber

2023

AJAGE

View full text Add to dashboard Cite

In order to solve the problem of black pollution in the 21st century, a new type of rubber ceramsite concrete was prepared by crushing the waste rubber tire into granules and adding it into the ceramsite concrete. The basalt fiber was used to modify the rubber for reducing the weakening of the concrete mechanical property caused by the addition of rubber. In this paper, the compressive strength of concrete specimens at 3 and 28 days was measured to discuss the modification effect of single fiber. The results show that the compressive strength of concrete can be improved by adding basalt fiber, and it increases with the increase of adding content. With the increase of rubber replacement rate, the strength of concrete increases first and then decreases, which proves that adding proper amount of rubber can reduce the reduction of concrete strength. The length of basalt fiber also affects the compressive strength of specimens. Basalt fibers of 12 mm length work better than fibers of 9 and 18 mm.

show abstract

Influence of doping with styrene-butadiene rubber on dynamic and mechanical properties of polymer concrete

Cited by 15 publications

References 20 publications

Polymer/Carbon Fiber Co-modification: Dynamic Compressive Mechanical Properties of Carbon Fiber Modified Polymer Reinforced Concrete

Polymer/Carbon Fiber Co-modification: Dynamic Compressive Mechanical Properties of Carbon Fiber Modified Polymer Reinforced Concrete

Preparation of Butyl Acrylate Copolymer Emulsion and Its Regulation Effect on Cement Hydration

Test of compressive strength of rubber ceramsite concrete modified by basalt fiber

Contact Info

Product

Resources

About