Structural Properties of High Strength Concrete and its Implications for Precast Prestressed Concrete

PCI Journal ◽  
1985 ◽  
Vol 30 (6) ◽  
pp. 92-119 ◽  
Author(s):  
S. P. Shah ◽  
Shuaib H. Ahmad
Keyword(s):  
Structural Properties ◽  
Prestressed Concrete ◽  
High Strength Concrete ◽  
High Strength ◽  
Strength Concrete ◽  
Precast Prestressed Concrete

scholarly journals Experimental Study of High Strength Concrete By Alccofine and Bagasse Ash

2021 ◽  
Vol 889 (1) ◽  
pp. 012058
Author(s):  
Harshdeep Vani ◽  
Kaamun ◽  
Sahil Arora
Keyword(s):  
Experimental Study ◽  
Prestressed Concrete ◽  
High Strength Concrete ◽  
Nuclear Power ◽  
Cement Content ◽  
High Strength ◽  
Heat Of Hydration ◽  
Fine Aggregate ◽  
Strength Concrete ◽  
The Cost

Abstract The use of concrete is increasing day to day very rapidly. The lesser the cross-section higher will be the grade of concrete. High-grade concrete is generally used in the nuclear power plant or precast prestressed concrete. The higher the cement content high will be the occurrence of the defect due to heat of hydration in the concrete. This paper deals with the experimental study of high-strength concrete which can be prepared by using the cement content less than the required quantity by using any other supplementary material. Like Alccofine and bagasse ash. Alccofine is costlier than cement which increases the cost of concrete to adjust that cost of concrete the bagasse ash is been used in the place of fine aggregate.

Study on Seismic Performance of C105 Prestressed High Strength Concrete Hollow Pipe Pile

2020 ◽  
Vol 980 ◽  
pp. 282-290
Author(s):  
Shi Meng Wang ◽  
Xin Sheng Yin
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Prestressed Concrete ◽  
High Strength Concrete ◽  
High Strength ◽  
Vertical Load ◽  
Vertical Pressure ◽  
Pipe Pile ◽  
Strength Concrete ◽  
Concrete Pipe

Prestressed concrete pipe pile with high bearing capacity, the advantages of convenient construction, low cost and widely used in practical engineering, because of the prestressed high strength concrete in use process is in complex stress state, both are under a lot of vertical load, and horizontal seismic action needs to be considered at the same time, it is necessary under the condition of considering the vertical load bearing capacity of prestressed high strength concrete level and considering the loading level, the horizontal bearing capacity. Scholars at home and abroad based on the simple hypothesis, puts forward the calculation method of a lot of interaction with soil, in the future will be adopted in calculation, using ABAQUS finite element analysis, this paper established the three-dimensional finite element model of prestressed concrete pipe pile, respectively under different vertical pressure (P = 4000 kn, P = 4800 kn, P = 6000 kn) one-way load and calculated the horizontal bearing capacity, and under repeated load, respectively to study the size of the different vertical pressure and different reinforcement stirrup ratio on its bearing capacity and seismic performance. The results show that the stiffness of pipe pile decreases significantly with the increase of vertical pressure under different vertical loads. With the increase of vertical load, the ductility and energy dissipation capacity of the components decrease gradually. The horizontal bearing capacity of prestressed high strength concrete pipe decreases with the increase of vertical pressure. However, its amplitude decreases with the increase of vertical pressure value.

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