Properties of Reactive Powder Concrete and Its Application in Highway Bridge

Song, Junwei; Liu, Shuhua

doi:10.1155/2016/5460241

Cited by 39 publications

(16 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was detected that the constitutive relationship of RPC is similar to that of mortar which is typical elastic brittle material [3]. The last mentioned research also indicated that the compressive stress-strain relation of the RPC has a linear ascending stage until the ultimate strain is reached.…”

Section: Introductionmentioning

confidence: 83%

Flexural Moment Capacity Evaluation of Reinforced RPC Two-way Slabs

Hamid¹,

Mohammed²

2019

View full text Add to dashboard Cite

The aim of this paper is to determine the flexural moment capacity of Reactive Powder Concrete (RPC) two-way slabs based on three models proposed by previous studies (Model 1, Model 2, and Model 3). The results obtained from these models were compared with those obtained from experimental work to check the accuracy and the applicability of the adopted theoretical models. The experimental program included the testing of three simply supported RPC two-way slabs (1000x1000x70) mm each. The tested specimens had identical properties except their steel fibres volume ratios (0.5 %, 1 %, and 1.5 %). The comparison with the experimental data showed that (Model 3) is the most suitable one among the three models. Model 1 was found to underestimate the failure load, and Model 2 was found to overestimate it. The maximum differences between the theoretical and experimental failure loads obtained from Model 1, Model 2, and Model 3 were 55.2% 87.2%, and 3.4%, respectively.

show abstract

Section: Introductionmentioning

confidence: 83%

Flexural Moment Capacity Evaluation of Reinforced RPC Two-way Slabs

Hamid¹,

Mohammed²

2019

View full text Add to dashboard Cite

show abstract

“…Compared with conventional concrete, the advantages of RPC were as follows. (1) Super high strength [3]: the weight of RPC structure dramatically reduced compared with the corresponding conventional concrete structures at the same loading condition [4]. This characteristic expanded the application range of RPC in high-rise buildings and largespan structures.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, RPC had high resistance to deicing salts, freeze-thaw cycles, and aggressive environments. (3) High performance of impact behavior [6]: former research had been showing that the antipenetration performance of RPC was up to 3 times of C30 concrete [7], which made it have a broad application prospect in protective engineering and antiearthquake engineering. (4) Self-healing ability: the water-binder ratio of RPC materials was very low generally between 0.17 and 0.22, so there was a significant amount of unhydrated cement in finished products which might provide a self-healing potential after the generation of crack [8].…”

Section: Introductionmentioning

confidence: 99%

Influence of MgO and Hybrid Fiber on the Bonding Strength between Reactive Powder Concrete and Old Concrete

Wang

2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The reactive powder concrete (RPC) was used as concrete repair material in this paper. The influence of steel fiber, steel fiber + MgO, and steel fiber + MgO + polypropylene fiber (PPF) on the mechanical properties of RPC repair materials and the splitting tensile strength between RPC and old concrete was studied. Influences of steel fiber, MgO, and PPF on the splitting tensile strength were further examined by using scanning electronic microscopy (SEM) and drying shrinkage test. Results indicated that the compressive and flexural strength was improved with the increasing of steel fiber volume fraction. However, the bonding strength showed a trend from rise to decline with the increasing of steel fiber volume fraction. Although MgO caused mechanical performance degradation of RPC, it improved bonding strength between RPC and existing concrete. The influence of PPF on the mechanical properties of RPC was not obvious, whereas it further improved bonding strength by significantly reducing the early age shrinkage of RPC. Finally, the relationship of drying shrinkage and splitting tensile strength was studied, and the equation between the splitting tensile strength relative index and logarithm of drying shrinkage was obtained by function fitting.

show abstract

“…Although many researchers around the world have investigated the properties of RPC, including mixture proportion, mechanical characteristics, and durability, a wide implementation of RPC as a construction material into construction business is limited because of its relatively high cost of production [21,22]. The addition of expensive steel fibers and the special treatment of a curing regimen influence the overall cost of RPC [8].…”

Section: Introductionmentioning

confidence: 99%

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

et al. 2018

View full text Add to dashboard Cite

Reactive Powder Concrete (RPC) is a newly emerging concrete material that is being used for various applications where high-strength concrete is required. RPC is obtained by removing coarse aggregates and adding fine powders such as silica fume into the concrete mixture. This research has focused on the proportioning and characterization of RPC mixture to be used as a material for energy storage pile application. For mixture parameters, the water-to-binder ratio (WB), silica fume (SF) content, and normal and warm temperature curing have been selected. The relative flowability, penetration resistance, setting time, drying shrinkage, and compressive and flexural strengths were evaluated. Based on the test results, the mixture with WB = 0.22 and SF = 20% was the best mixture with the highest tensile strength and other characteristics. Response surface methodology (RSM) was used to design the experiments and find the optimum mixture proportions to achieve the highest compressive strength. The optimum WB and SF content to achieve the highest strength for combined ages (7 days, 28 days, and 56 days) was determined to be WB = 0.213 and SF = 20%. Through the comparison between the test results and the required strength from analytical simulations, the RPC studied in this paper was deemed to be suitable for the energy storage pile.

show abstract

Properties of Reactive Powder Concrete and Its Application in Highway Bridge

Cited by 39 publications

References 13 publications

Flexural Moment Capacity Evaluation of Reinforced RPC Two-way Slabs

Flexural Moment Capacity Evaluation of Reinforced RPC Two-way Slabs

Influence of MgO and Hybrid Fiber on the Bonding Strength between Reactive Powder Concrete and Old Concrete

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

Contact Info

Product

Resources

About