A proposed method and monitoring system for evaluating workability of Portland cement concrete during mixing

Xiao, Rong; Liu, Honghai; Li, Cheng

doi:10.1016/j.heliyon.2022.e11355

Cited by 3 publications

(1 citation statement)

References 21 publications

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“… [ 51 , 73 ] F19 Polyurea coatings offer a smooth and airtight covering over concrete, which may enhance interior air quality by minimizing air exchange with the outside environment. [ 74 , 75 ] F20 polyurea coatings are an excellent solution for concrete surfaces for public locations where graffiti is an issue. [ 49 , 76 ] F21 Polyurea coatings may be textured to offer a non-slip surface, which makes them an excellent option on concrete surfaces that might become wet, such as pool decks and pathways.…”

Section: Success Identificationmentioning

confidence: 99%

Modeling of success factors of using PU coats in concrete construction projects

Waqar,

Shafiq,

Bheel

et al. 2024

Heliyon

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Section: Success Identificationmentioning

confidence: 99%

Modeling of success factors of using PU coats in concrete construction projects

Waqar,

Shafiq,

Bheel

et al. 2024

Heliyon

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Experimental Study on the Effect of Mixing Time on the Performance of High Strength Concrete

Ma,

Zhu,

Zeng

et al. 2024

Lecture Notes in Civil Engineering

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To solve the problem of concrete quality caused by non-standard mixing time of high-strength concrete and improve the durability life of concrete structures, based on the working performance and mechanical properties of concrete, effect of mixing time on the workability and strength was studied. In this paper, for high-strength concrete with water-binder ratios of 0.31 and 0.38, the mixing time was 120 s, 160 s, 180 s and 240 s. The effects of different mixing times on the fluidity, cohesion and water retention of high-strength concrete and the compressive strength of 28 days were studied. The test results show that the appropriate mixing time benefits the working performance of concrete and the development of concrete strength. Based on the workability and mechanical properties of concrete, the mixing time of concrete with a water-binder ratio of 0.38 is 160 s, and the mixing time of concrete with a water-binder ratio of 0.31 is 180 s. To ensure the excellent uniformity, compactness, workability and mechanical properties of concrete, the mixing time should consider the slump and the water-binder ratio of concrete. For concrete with a water-binder ratio of 0.31 to 0.38, the mixing time can change from 180 to 160 s.

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Study on Improvement Measures for Construction Performance and Mechanical Properties of Cement Stabilized Porous Basalt

Jiang,

Tan,

Cai

et al. 2024

Journal of Testing and Evaluation

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Cement stabilized porous basalt (CSPB) is prone to early agglomeration into lumps owing to the abundant pores and high moisture absorption of porous basalt, making it difficult to unload the mixture at construction sites in high temperatures and rainy areas. To study the construction performance of a CSPB mixture, a novel test method and a convenient device were proposed to test the workability of the cement stabilized macadam mixture, and the evaluation criteria and evaluation method of the workability were proposed based on the tilt angle test. The influencing factors of the workability of CSPB were investigated, and the results show that temperature, delay time, moisture absorption of aggregate, mixture proportion, and construction technology had significant influences on construction performance. Then measures were recommended to improve the construction performance of CSPB. Considering the influence of construction performance on mechanical strength, the effects of temperature, delay time, water reducer dosage, and cement dosage on the mechanical strength of CSPB were also investigated. The results show that temperature and delay time had significant influence on the mechanical strength. The results of this research are of great significance to the field construction of CSPB.

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A proposed method and monitoring system for evaluating workability of Portland cement concrete during mixing

Cited by 3 publications

References 21 publications

Modeling of success factors of using PU coats in concrete construction projects

Modeling of success factors of using PU coats in concrete construction projects

Experimental Study on the Effect of Mixing Time on the Performance of High Strength Concrete

Study on Improvement Measures for Construction Performance and Mechanical Properties of Cement Stabilized Porous Basalt

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