Experimental study of some durability properties of ECC with a more environmentally sustainable rice husk ash and high tenacity polypropylene fibers

Costa, Fernanda Bianchi Pereira da; Righi, Débora Pedroso; Graeff, Ângela Gaio; Filho, Luiz Carlos Pinto da Silva

doi:10.1016/j.conbuildmat.2019.04.092

Cited by 50 publications

(25 citation statements)

References 20 publications

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“…The use of very fine silica sand instead of the fine and coarse aggregates is also another reason for the material s behavior, while the existence of synthetic fibers can assure the active resistance to crack opening and propagation, which shifts the behavior to the multi-cracking mode. Numerous studies were conducted during the last two decades to study the properties of ECC under the different kinds of loads, to explore the effect of different types of materials and fibers on the mixture characteristics, and to evaluate the material behavior under extreme conditions [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Residual Impact Performance of ECC Subjected to Sub-High Temperatures

et al. 2022

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Despite the fact that the mechanical properties of Engineered Cementitious Composites (ECC) after high-temperature exposure are well investigated in the literature, the repeated impact response of ECC is not yet explored. Aiming to evaluate the residual impact response of ECC subjected to sub-high temperatures under repeated drop weight blows, the ACI 544-2R repeated impact test was utilized in this study. Disk impact specimens (150 mm diameter and 64 mm thickness) were prepared from the M45 ECC mixture but using polypropylene fibers, while similar 100 mm cube specimens and 100 × 100 × 400 mm prism specimens were used to evaluate the compressive and flexural strengths. The specimens were all cast, cured, heated, cooled, and tested under the same conditions and at the same age. The specimens were subjected to three temperatures of 100, 200 and 300 °C, while a group of specimens was tested without heating as a reference group. The test results showed that heating to 100 and 200 °C did not affect the impact resistance noticeably, where the retained cracking and failure impact numbers and ductility were higher or slightly lower than those of unheated specimens. On the other hand, exposure to 300 °C led to a serious deterioration in the impact resistance and ductility. The retained failure impact numbers after exposure to 100, 200, and 300 °C were 313, 257, and 45, respectively, while that of the reference specimens was 259. The results also revealed that the impact resistance at this range of temperature showed a degree of dependency on the compressive strength behavior with temperature.

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Section: Introductionmentioning

confidence: 99%

Residual Impact Performance of ECC Subjected to Sub-High Temperatures

et al. 2022

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“…Since the internal pores of the ECC materials are small, most scholars study capillary water absorption. For example, Da Costa et al [ 34 ] carried out capillary water absorption tests and found that adding PP fiber to ECC can increase pores and water absorption. Zhang et al [ 35 ] carried out a capillary water absorption test of ECC under different water–binder ratios, and the mass water absorption was about 2.35%.…”

Section: Resultsmentioning

confidence: 99%

Performance Test and Microstructure of Modified PVC Aggregate-Hybrid Fiber Reinforced Engineering Cementitious Composite (ECC)

Cai

Hong

et al. 2021

Materials

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This study aims to solve the problems of the high cost, heavy pollution and poor performance of traditional engineered cementitious composites (ECC) by adding modified Polyvinyl chloride (PVC) aggregate, Polypropylene (PP)–Polyvinyl alcohol (PVA) hybrid fiber and large amount of fly ash. The PVC aggregate is modified by pre-coating silica fume with a PP fiber volume content of 0.5%, PVA fiber volume contents of 1%, 1.5%, and 2%, PVC aggregate contents of 10%, 20%, and 30%, and fly ash volume content of 69%. Different properties and microstructures were studied by carrying out cube compression tests, splitting tensile tests, water absorption tests, drop hammer impact tests, scanning electron microscopy and nuclear magnetic resonance tests. According to the test results, under the same content of PVC aggregate, the use of modified PVC aggregate can, not only effectively avoid the decrease in strength and increase of water absorption, but also improve brittleness and impact failure energy. Regardless of the kind and content of fiber, the compressive strength and brittleness will decrease, while the splitting tensile strength, water absorption, and impact failure energy will increase. After adding 0.5% PP and 1.5% PVA fiber, the performance is ordinary and a negative mixing effect occurs. As more modified PVC aggregate is added, the strength of the ECC concrete with PP–PVA hybrid fiber and modified PVC aggregate added slowly decrease, while the water absorption and impact failure energy increase. Based on a comprehensive analysis of the test data, the reinforcement method of adding 1.5% PVA-0.5% PP hybrid fiber-30% modified PVC aggregate is superior to adding 1.5% PVA fiber, but slightly inferior to adding 2% PVA fiber. This study argues that the reinforcement method is of great significance for the promotion and application of ECC.

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“…Thus, the volume of this zone was enlarged as more than the volume of the transition zone between the aggregate and matrix because of few pores which did not have the capability of water absorption. So, they could not enlarge the zone volume (Da Costa et al 2019). Rashid conducted that the addition of volumes (0.4, 0.6)% of polypropylene fibers to the prestressed concrete girders exposing to normal weathering (open atmosphere for 3 years) made the water absorption smaller around 3% and 8% consecutively in comparison to the conventional mixture.…”

Section: Water Absorptionmentioning

confidence: 99%

“…(Afroughsabet and Ozbakkaloglu 2015, Da Costa et al 2019, Fallah and Nematzadeh 2017, Blazy and Blazy 2021. Maruthachalam et al measured the water absorption of fibrillated polypropylene fiber reinforced high performance concrete.…”

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confidence: 99%

Durability of polypropylene fiber reinforced concrete: Literatures review

Abdulkareem

Alshahwany²,

Mousa³

2022

EJSE

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Use of polypropylene fibers to reinforce concrete has attracted widespread attention from both researchers and construction industry because of the numerous characteristics they have, compared to other types of fibers. This paper critically reviews the current state of knowledge of impacting the inclusion of polypropylene fibers on concrete durability. Detailed review on the different durability properties including: Water and gas permeability, sorptivity, water absorption, chloride diffusion, carbonation, and frost resistance. The influence of polypropylene fibers on these properties is discussed in this paper.

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Experimental study of some durability properties of ECC with a more environmentally sustainable rice husk ash and high tenacity polypropylene fibers

Cited by 50 publications

References 20 publications

Residual Impact Performance of ECC Subjected to Sub-High Temperatures

Residual Impact Performance of ECC Subjected to Sub-High Temperatures

Performance Test and Microstructure of Modified PVC Aggregate-Hybrid Fiber Reinforced Engineering Cementitious Composite (ECC)

Durability of polypropylene fiber reinforced concrete: Literatures review

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