scholarly journals Outline of: "Guidelines for Design and Construction of High-strength Concrete for Prestressed Concrete Structures"

2009 ◽  
Vol 47 (2) ◽  
pp. 7-13
Author(s):  
H. Mutsuyoshi ◽  
K. Ohtsuka ◽  
T. Ichinomiya ◽  
M. Sakurada
Keyword(s):  
Prestressed Concrete ◽  
High Strength Concrete ◽  
Concrete Structures ◽  
High Strength ◽  
Strength Concrete ◽  
Design And Construction

The Experimental Study on Creep and Shrinkage of High Strength Concrete with Fly Ash

2013 ◽  
Vol 639-640 ◽  
pp. 423-426 ◽  
Author(s):  
Jian Qun Wang ◽  
Zhi Fang ◽  
Zhi Jian Tang
Keyword(s):  
Fly Ash ◽  
Prestressed Concrete ◽  
High Strength Concrete ◽  
Large Scale ◽  
Influence Factor ◽  
Concrete Structures ◽  
High Strength ◽  
Strength Concrete ◽  
Shrinkage And Creep ◽  
Creep And Shrinkage

Shrinkage and creep characteristics of concrete are significant factors in the design of prestressed concrete structures. With large scale/span concrete structures developed, the fly ash or other blends are added into high strength concrete to improve the mechanical properties and workability. As a result, the existing shrinkage and creep predicting models have certain limitations. The creep and shrinkage behavior of high strength concrete with fly ash are studied in this paper. Proper predicting model for shrinkage and creep of high strength concrete is recommended. The influence factor of fly ash is proposed as well. These conclusions would be of great useful for structures with fly ash concrete.

Background to seismic design provisions in CSA A23.3–04 for high-strength concrete

2009 ◽  
Vol 36 (4) ◽  
pp. 565-579 ◽  
Author(s):  
Patrick Paultre ◽  
Denis Mitchell
Keyword(s):  
Compressive Strength ◽  
Seismic Design ◽  
High Strength Concrete ◽  
Concrete Strength ◽  
Concrete Structures ◽  
High Strength ◽  
Frame Structure ◽  
Concrete Compressive Strength ◽  
Strength Concrete ◽  
Loading Tests

This paper presents the background experimental and analytical research that was carried out to develop the provisions for the seismic design of high-strength concrete structures in the 2004 Canadian standard CSA A23.3–04. It is noted that the 1994 Canadian standard CSA A23.3–94 limited the concrete compressive strength to 55 MPa for the seismic design of nominally ductile and ductile structures, while the 1995 New Zealand Standard limited the concrete compressive strength to 70 MPa. In contrast, the 2008 American Concrete Institute (ACI) code ACI 318M has no upper limit on concrete strength, even for the seismic design of ductile structural elements. This tremendous variation in these limits indicated that more experimental evidence was needed. This paper presents experimental results of reversed cyclic loading tests on large-scale structural components as well as simulated seismic loading tests of a frame structure constructed with high-strength concrete. The goal of this collaborative research program at the University of Sherbrooke and McGill University was to determine the seismic design and detailing requirements for high-strength concrete structures to achieve the desired level of ductility and energy dissipation. The experimental programs include full-scale testing of the following: columns subjected to a pure axial load (square and circular columns); columns subjected to flexure and axial loads; beam-column subassemblages (square and circular columns); coupling beams in coupled wall structures; shear walls and a two-storey, three-dimensional frame structure. The results of the responses of the high-strength concrete structural specimens are compared with the responses of companion specimens constructed with normal-strength concrete.

scholarly journals Experimental Research on Properties of High Strength Concrete (FRSCC)

2019 ◽  
Vol 8 (6S4) ◽  
pp. 264-266
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
Experimental Research ◽  
High Strength Concrete ◽  
Concrete Structures ◽  
Drying Shrinkage ◽  
High Strength ◽  
Failure Pattern ◽  
Strength Concrete ◽  
Hardened State

SCC and FRC may be classified as superior Concrete because of its special proportions and properties. HPC may be a specialized concrete designed top reduce many edges within the construction of concrete structures that can't continually be achieved habitually mistreatment standard ingredients, traditional mixture & hardening practices. Fibres into SCC will produce FRSCC with superior properties in a fresh and hardened state. The bolstered fibres in concrete might improve the durability, flexural strength, impact strength, toughness, drying shrinkage, and failure pattern of the concrete.

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