Experimental investigation on the impact resistance of rubber self-compacting concrete

Chen, Jianxing; Zhuang, Jinping; Shen, Sizheng; Dong, Shuqing

doi:10.1016/j.istruc.2022.03.057

Cited by 21 publications

(19 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is obtained by the ratio of dynamic compressive strength to static compressive strength 49 . Several prediction formulas of DIF have been established to determine the dynamic compressive strength of concrete 40,50 …”

Section: Dynamic Test Resultsmentioning

confidence: 99%

“…The DIF could well reflect the effect of strain rate on static compressive strength. Hence, the dynamic compressive strength of concrete materials under different strain rates could be predicted by the DIF and static compressive strength of concrete materials 40 . In this study, many dynamic and static test data were used to produce the prediction formula of the DIF by using the least square method.…”

Section: Dynamic Test Resultsmentioning

confidence: 99%

“…The number of repeat samples is not less than 3. A total of 45 Brazilian discs (72 mm × 36 mm) 40 specimens were used for dynamic compression tests.…”

Section: Testing Proceduresmentioning

confidence: 99%

See 2 more Smart Citations

Study on mechanical properties of (1 % PVA fiber +1 % Steel fiber) PS‐ECC under the coupling effects of elevated temperature and dynamic loads

Chen

Zhu

Zhou

et al. 2023

Structural Concrete

Self Cite

View full text Add to dashboard Cite

The coupling effect of temperature and impact loads can cause the concrete strength to decay and lead to the failure of the structure that cannot reach the designed load‐bearing strength. In this study, the evolution laws of dynamic compressive strength, dynamic increase factor (DIF), and absorbed energy of (1% polyvinyl alcohol [PVA] fiber +1% steel fiber) PS‐ECC (engineered cementitious composite) were obtained by a split Hopkinson compression bar test. The conclusions can be concluded: the dynamic compressive strength, DIF, and absorbed energy of PS‐ECC largely show a tendency to decrease with increasing temperature; however, the recovery effect occurs at 200°C due to the accumulation of steam inside the specimen to counteract the impact force. Then, 200°C becomes a threshold value, and the sensitivity of PS‐ECC to strain rate shows a steep drop when the temperature exceeds 200°C. Compared to 200°C, the growth rate of dynamic compressive strength, DIF, and energy absorption capacity from strain rate 50–80 s−1 decreases by 50.65, 55.24, and 45.71% at 300°C, the growth rate decreases by 55.87, 56.5, and 48.45% at 400°C. The impact energy absorption of PS‐ECC was provided mainly by PVA fiber. The energy absorption of PS‐ECC is almost the same at 300 and 400°C for the same strain rate due to PVA fiber burning disappears.

show abstract

Section: Dynamic Test Resultsmentioning

confidence: 99%

Section: Dynamic Test Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Study on mechanical properties of (1 % PVA fiber +1 % Steel fiber) PS‐ECC under the coupling effects of elevated temperature and dynamic loads

Chen

Zhu

Zhou

et al. 2023

Structural Concrete

Self Cite

View full text Add to dashboard Cite

show abstract

“…Because of this behavior, stress is distributed for the propagation of many cracks, which ultimately increases total fracture toughness and decreases brittleness. Several studies have reported that rubber-based concrete’s impact resistance was increased [ 34 , 35 , 36 ]. However, the impact test data regarding rubberized concrete with fibres using a drop weight impact test is limited and it required special attention.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Statistical Investigation to Evaluate Impact Strength Variability and Reliability of Preplaced Aggregate Concrete Containing Crumped Rubber and Fibres

Swaminathan

Karthikeyan

Subbaram³

et al. 2022

Materials

View full text Add to dashboard Cite

The proper disposal of used rubber tires has emerged as a primary concern for the environment all over the globe. Millions of tires are thrown away, buried and discarded every year, posing a major environmental concern owing to their slow decomposition. As a result, it is advantageous to use recycled waste rubber aggregates as an additional building resource. Recycling crushed rubber would lead to a long-term solution to the problem of decreasing natural aggregate resources while conserving the environment. This study examines the impact strength variability and reliability of preplaced aggregate concrete containing crumped rubber and fibres. Ten different mixtures were prepared by replacing natural aggregate with crumped rubber (5, 10, 15 and 20%). The crumped rubber was pretreated by the water with sodium hydroxide dilution for 30 min before usage. Hooked-end steel fibres were used at a dosage of 1.5%. The compressive strength, impact strength, impact ductility index and failure pattern were examined and discussed. In addition, a statistical method called Weibull distribution is used to analyze the scattered experimental results. The results showed that when the crumb rubber content was raised, the retained first cracking and failure impact numbers increased. As a result of substituting crumb rubber for 20% of the coarse aggregate in plain and fibrous mixes, the percentage development in first crack and failure was between 33 and 76% and 75 to 129%, respectively.

show abstract

“…erefore, many researchers have tested the incorporation of waste tyre rubber powder into concrete with satisfactory results. Compared with traditional concrete, rubber concrete is lighter in weight and lower in density, has better impact resistance, and has good thermal insulation properties [29][30][31][32]. For these reasons, the study of rubber concrete has become a popular research domain in recent years.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Uniaxial Compression Mechanical Properties of Rubber Powder Recycled Coarse Aggregate Concrete Based on Strain Energy Theory

Wang

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In order to develop and make full use of waste construction concrete and waste tyre rubber powder, the experiment entirely used recycled coarse aggregate to replace natural crushed stone aggregate and investigated the effect of different mesh sizes of rubber powder (20 mesh, 60 mesh, and 100 mesh) on the uniaxial compressive mechanical properties, strain energy density, and pore structure of recycled coarse aggregate concrete at three curing ages (14 d, 28 d, and 90 d). Based on the strain energy theory, fractal theory, and grey correlation theory, the effects of the fractal dimension of the pore size of the rubber powder recycled concrete on the correlation of the strain energy parameters were investigated at different curing ages. The research results show that as the age period increases, the ability of the rubber powder recycled coarse aggregate concrete to absorb strain energy increases. Before the peak stress, the rubber powder recycled coarse aggregate concrete mainly carries out the storage of elastic strain energy. The incorporation of rubber powder can refine the pore structure of the rubber powder recycled coarse aggregate concrete so that the large pore size pores evolve towards the medium (50–200 μm) or small pores (<50 μm). The fractal dimension analysis revealed that the incorporation of 20 mesh and 60 mesh rubber powder enhances the inhomogeneity of the small pore (<50 μm) and the medium pore (40 μm–140 μm) in the recycled concrete. The grey correlation analysis revealed that the pore size factor with the greatest influence on the elastic energy density was the large pore size (>200 μm).

show abstract

Experimental investigation on the impact resistance of rubber self-compacting concrete

Cited by 21 publications

References 17 publications

Study on mechanical properties of (1 % PVA fiber +1 % Steel fiber) PS‐ECC under the coupling effects of elevated temperature and dynamic loads

Study on mechanical properties of (1 % PVA fiber +1 % Steel fiber) PS‐ECC under the coupling effects of elevated temperature and dynamic loads

Experimental and Statistical Investigation to Evaluate Impact Strength Variability and Reliability of Preplaced Aggregate Concrete Containing Crumped Rubber and Fibres

Analysis of Uniaxial Compression Mechanical Properties of Rubber Powder Recycled Coarse Aggregate Concrete Based on Strain Energy Theory

Contact Info

Product

Resources

About