Development and Engineering Application of Dry-Mixing Self-Compacting Concrete

2013 ◽  
Vol 689 ◽  
pp. 372-377
Author(s):  
Bo Yi ◽  
Yan He Li ◽  
Shi Ding
Keyword(s):  
Mechanical Properties ◽  
Engineering Application ◽  
Social Effects ◽  
Self Compacting Concrete ◽  
Ordinary Concrete ◽  
Dry Mixing ◽  
Working Performance

In this paper, the application background of ordinary concrete is introduced first, and our purpose is to research the advantages of dry-mixing self-compacting concrete relative to ordinary concrete. Some studies on mechanical properties, working performance and durability of dry-mixing self-compacting concrete are brought into this paper. The results shows that the application of dry-mixing self-compacting concrete produced economic and social effects.

Experimental Study on Mechanical Properties of Recycled Concrete Specimens of Marine Engineering

2011 ◽  
Vol 71-78 ◽  
pp. 331-337
Author(s):  
Wen Bai Liu ◽  
Xia Li
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Engineering Application ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Replacement Rate ◽  
Replacement Ratio ◽  
Ordinary Concrete ◽  
Seawater Corrosion ◽  
Marine Engineering

Mechanical properties of recycled concrete under different conditions were studied in this paper. Based on three kinds of replacement percentage of recycled aggregate and four kinds of seawater corrosion conditions, the experimental study of mechanical properties of recycled concrete specimens corroded by seawater and produced under vacuum conditions were conducted, and compared with that of ordinary concrete specimens. Testing results show that compressive strength of recycled concrete decreases with the increase of both the replacement rate of recycled aggregate and the corrosion time by seawater, with the maximum reduce value is 17.96% and 24.52%; Vacuum conditions effectively improve the strength of recycled concrete, improved value is 1.03-1.19 times of the same replacement ratio of recycled aggregate, and 1.00-1.16 times of the ordinary concrete. It provides the reference for marine engineering application of recycled concrete.

scholarly journals Analysis of Biaxial Mechanical Properties and Failure Criterion of Self-Compacting Concrete

2021 ◽  
Vol 8 ◽  
Author(s):  
Jun Zhang ◽  
Chen Li ◽  
Congxiang Zhu ◽  
Zhiqing Zhao
Keyword(s):  
Mechanical Properties ◽  
Principal Stress ◽  
Compressive Stress ◽  
Failure Modes ◽  
Biaxial Loading ◽  
Biaxial Tension ◽  
Biaxial Compression ◽  
Self Compacting Concrete ◽  
Ordinary Concrete ◽  
Biaxial Mechanical Properties

Biaxial compression-compression, biaxial tension-compression and compression-shear tests were carried out on self-compacting concrete (SCC) using the rock true triaxial machine and compression-shear hydraulic servo machine to explore the biaxial mechanical properties of SCC. The failure modes and stress-strain curves of SCC under different loading conditions were obtained through experiment. Based on the comparison with the biaxial loading test data of ordinary concrete, the following conclusions are drawn: the failure modes and failure mechanisms under biaxial compression-compression and biaxial tension-compression are similar between SCC and ordinary concrete. Under compression-shear loading, the oblique cracks formed on the lateral surface of the specimen parallel to the shear direction gradually increased and the friction marks on the shear failure section were gradually deepened with the increase of axial compression ratio. The development trend of the stress-strain curve in the principal stress direction was not related to the lateral stress. Under the influence of lateral compressive stress, the principal compressive stress of SCC was increased by 55.78% on average; under biaxial tension-compression, the principal tensile stress of SCC had a maximum reduction of 62.79%; and under the compression-shear action, the shear stress of SCC had a maximum increase of 3.35 times. Compared with the biaxial stress test data of ordinary concrete, it can be seen that the lateral compressive stress had a more significant effect on the principal stress of SCC under biaxial loading. Subsequently, the strength criterion equations of SCC under biaxial loading were proposed based on the principal stress space and octahedral space stress respectively, which have shown good applicability in practice.

Experimental Study on Properties of a Kind of New Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 3475-3478
Author(s):  
Mei Xiong
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Performance Test ◽  
Coarse Aggregate ◽  
High Strength ◽  
Paper Study ◽  
Self Compacting Concrete ◽  
Performance Gap ◽  
Dry Mixing ◽  
Concrete Materials

Dry-mixing self-compacting concrete (DSCC) is a kind of new concrete composite materialswhich based on self-compacting concrete vibration. DSCC was prepared with the cement, the coarse aggregate and sand of high strength and some cement replacement materials that had the better crack resistance. And it has the characteristics of filling performance, gap trafficability and anti- segregating like self-compacting concrete. The paper study on the basic mechanical properties and anti-carbonization ability of DSCC through concrete performance test, the results indicate that the basic mechanical properties and durability of DSCC better significantly than common concrete materials.

Discussion on Repair Method of Concrete Highway Pavement

2013 ◽  
Vol 321-324 ◽  
pp. 209-212
Author(s):  
Chun Yan Xia
Keyword(s):  
Mechanical Properties ◽  
Preparation Program ◽  
Step Method ◽  
Concrete Technology ◽  
Concrete Material ◽  
Repair Method ◽  
Ordinary Concrete ◽  
One Step ◽  
Highway Pavement

nfluences on properties of the concrete highway pavement were analyzed in this paper, and the optimal formulation materials were gotten to use in the repair of used-broken cement blocks in the experiment. Polyurethane concrete material was prepared, combing the ordinary concrete technology with one-step method of the synthesis of polyurethane hard bubble, and then its mechanical properties of the relevant parameters were measured to determine the optimal preparation program. The results show that the polyurethane concrete also has sufficiently good mechanical properties while it has the characteristic of fast patching.

The influence of emulsified asphalt on mechanical properties of self-compacting concrete

2021 ◽  
Vol 297 ◽  
pp. 123842
Author(s):  
Mingliang Zhang ◽  
Yufei Jing ◽  
Yang Yang ◽  
Jiupeng Zhang ◽  
Guojing Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Self Compacting Concrete ◽  
Emulsified Asphalt
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