Creep of a silica fume concrete

Buil, M.; Acker, Paul

doi:10.1016/0008-8846(85)90119-x

Cited by 29 publications

(6 citation statements)

References 1 publication

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“…Buill and Acker [8] studied the creep properties of concretes where the part (25%) of the cement is replaced with silica fume as a mineral admixture. This study concluded that the silica fume containing specimen under drying conditions exhibited a lower creep than the controlled (no silica fume) specimen.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical modeling of creep in different types of concrete

Reddy

Ramaswamy

2018

Heliyon

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Creep in concrete, play a critical role in estimating losses in prestressed concrete structures, such as bridge girders, nuclear containment vessels, etc. The present study aims at investigating the creep under various environmental conditions in different types of concrete made with different ingredients using an experimental and numerical approach. Seven different concrete mixes have been made for this purpose and among the seven mixes, three mixes are self compacted concrete mixes (35 MPa, 55 MPa and 70 MPa), a high volume fly ash concrete mix (45 MPa), two mixes of normally vibrated ordinary Portland cement (OPC) concrete mixes (35 MPa and 45 MPa) and a heavy density concrete (25 MPa). Studies have been carried out at temperature of 25 °C and two relative humidity (RH) conditions (RH of 60% and 70%). An analytical model has been developed to simulate the drying phenomena in concrete based on a poromechanics approach. The hydration effects in blended cements (containing mineral admixture) is considered while developing the model. The proposed model is capable of predicting the degree of hydration, temperature and relative humidity (RH) over the continuum that required for estimating the creep strain. Micro prestress solidification (MPS) is used to estimate the creep strain. It is found that the proposed model is able to predict the drying phenomena and creep strain in various concretes, and which is in good agreement with the corresponding experimental results. It is found that heavy density concrete shows a higher creep strain than the other concretes. This may be due to the lower porosity of hematite aggregate. Further adding fly ash as a mineral admixture to concrete mix reduces the creep. Creep in a reinforced concrete (RCC) beam tested under sustained loading and reported in the literature is simulated using the present model and it is seen that the model predictions are in good agreement with the test data.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical modeling of creep in different types of concrete

Reddy

Ramaswamy

2018

Heliyon

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“…The poor workability is the major disadvantage of employing silica fume as an additive in concrete [ 81 ]. SF was also found to be unsuccessful at reducing creep [ 82 ] and resulted in a decrease in compressive strength [ 83 ]. Excessive steel corrosion prompted by chloride was also reported in a marine situation and was corrected by using a lower ratio of water to cement [ 84 ].…”

Section: Common Wastes For Polymer Concretementioning

confidence: 99%

Utilization of Polymer Concrete Composites for a Circular Economy: A Comparative Review for Assessment of Recycling and Waste Utilization

Alhazmi

Shah²,

Anwar³

et al. 2021

Polymers

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Polymer composites have been identified as the most innovative and selective materials known in the 21st century. Presently, polymer concrete composites (PCC) made from industrial or agricultural waste are becoming more popular as the demand for high-strength concrete for various applications is increasing. Polymer concrete composites not only provide high strength properties but also provide specific characteristics, such as high durability, decreased drying shrinkage, reduced permeability, and chemical or heat resistance. This paper provides a detailed review of the utilization of polymer composites in the construction industry based on the circular economy model. This paper provides an updated and detailed report on the effects of polymer composites in concrete as supplementary cementitious materials and a comprehensive analysis of the existing literature on their utilization and the production of polymer composites. A detailed review of a variety of polymers, their qualities, performance, and classification, and various polymer composite production methods is given to select the best polymer composite materials for specific applications. PCCs have become a promising alternative for the reuse of waste materials due to their exceptional performance. Based on the findings of the studies evaluated, it can be concluded that more research is needed to provide a foundation for a regulatory structure for the acceptance of polymer composites.

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“…Bull et al 21 investigated the creep of concrete with SCMs, SF, and the creep of normal concrete without SF; the results indicated that the mix of SF reduced creep. A similar result was obtained by AL‐Khaja 22 .…”

Section: Introductionmentioning

confidence: 99%

Creep of reinforced high‐strength concrete‐containing industrial by‐products silica fume and slag

Pang

Zheng

Zhou

2020

Structural Concrete

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This study aimed to examine the creep of reinforced high‐strength concrete (HSC) containing industrial byproducts, silica fume (SF), and slag (SL). In total, 36 HSC specimens were prepared and tested for creep. Three specimens were used for the plain HSC creep test, 6 specimens were used for the reinforced HSC creep test, and 27 specimens were used for companion shrinkage tests. The applicability of existing creep models in predicting the creep of HSC containing SF and SL were evaluated. In addition, the effect of compressive strength and reinforcement ratio on reinforced HSC was investigated. Moreover, a new procedure to calculate the creep of reinforced HSC columns, based on the modified creep model and an existing creep recovery model, was developed. Finally, a parametric analysis was conducted to investigate the effects of compressive strength, reinforcement ratio, stress–strength ratio, loading age, and volume–surface ratio on reinforced HSC.

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Creep of a silica fume concrete

Cited by 29 publications

References 1 publication

Experimental and numerical modeling of creep in different types of concrete

Experimental and numerical modeling of creep in different types of concrete

Utilization of Polymer Concrete Composites for a Circular Economy: A Comparative Review for Assessment of Recycling and Waste Utilization

Creep of reinforced high‐strength concrete‐containing industrial by‐products silica fume and slag

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