EXPERIMENTAL RESEARCH ON SHEAR FATIGUE PERFORMANCE OF CFRP-STRENGTHENED HIGH-STRENGTH CONCRETE STRUCTURE

2011 ◽  
Author(s):  
HONG HAI ◽  
YINGHUA ZHAO ◽  
GUANGSHAN ZHU
Keyword(s):  
Experimental Research ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Fatigue Performance ◽  
Strength Concrete ◽  
Shear Fatigue

Fatigue Investigation of High-Strength Concrete Members Reinforced with CFRP

2011 ◽  
Vol 250-253 ◽  
pp. 2202-2205
Author(s):  
Hong Hai ◽  
Li Sun ◽  
Ying Hua Zhao
Keyword(s):  
Fatigue Strength ◽  
High Strength Concrete ◽  
Low Cycle Fatigue ◽  
Concrete Strength ◽  
Concrete Structures ◽  
High Strength ◽  
Fatigue Performance ◽  
Plate Interface ◽  
Strength Concrete ◽  
Shear Fatigue

Fatigue damage becomes an emerging problem in lots of concrete structures which will subject to cyclic loadings during their working life. This paper presents a study on interfacial shear fatigue performance of a high-strength concrete structure strengthened by carbon fiber-reinforced plastic (CFRP) plate, which has been established as an effective method for rehabilitation and strengthening of concrete structures. Based on the static test, a new experimental investigation of the shear fatigue performance along the concrete-plate interface under the low cycle fatigue load in the condition of R=0.1 is presented. The main variable is the concrete strength. Compared with the static ultimate strength, fatigue strength decreases. Therefore, a safety factor of the fatigue strength at the interface of CFRP and concrete should be applied in design.

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.

The Experimental Research of a Heavyweight High-Strength Concrete

2009 ◽  
Vol 614 ◽  
pp. 263-268
Author(s):  
Ying She Luo ◽  
Hong Wang ◽  
Wen Bin Liu ◽  
Shou Chang Deng ◽  
Yuan Rong Ma
Keyword(s):  
Fly Ash ◽  
Feasibility Study ◽  
Experimental Research ◽  
Apparent Density ◽  
High Strength Concrete ◽  
High Strength ◽  
Silica Powder ◽  
Strength Concrete ◽  
Optimum Proportion ◽  
Definition Of

The definition of heavyweight high-strength concrete（HHC for short）is firstly introduced. According to the characteristic targets of a HHC, suitable experimental material and project are chosen. Via analyzing and commenting on various properties of different minerals such as silica powder and fly ash, a feasibility study for mixed them into concrete to manufacture HHC is conducted, and its mechanics properties and Alkali-resistant property are tested. On the basis of them, HHC whose strength is C60 and apparent density is 2800 kg/m3 is successfully manufactured. The optimum proportion is given out.

Experimental Research on Steel Bar Reinforced High-Strength Concrete Columns

2013 ◽  
Vol 671-674 ◽  
pp. 454-460
Author(s):  
Xiao Dan Fang ◽  
Guan Xin Chen ◽  
Hong Wei ◽  
Zheng Qin Yao
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Concrete Column ◽  
Strength Concrete ◽  
Steel Bar ◽  
Practical Engineering ◽  
High Strength Concrete Columns

4 steel bar reinforced high-strength concrete column specimens were tested under axial compression in order to study how different height width ratios, different stirrup ratios and different steel bar reinforcement ratios influence the failure mode of the members and the bearing capacity. Results show that the steel bar reinforced high-strength concrete columns are applicable to practical engineering.

High-Strength Concrete Structure Strengthened with CFRP: Experimental Study and Nonlinear FE Analysis

2011 ◽  
Vol 255-260 ◽  
pp. 3087-3090
Author(s):  
Hong Hai ◽  
Ying Hua Zhao ◽  
Li Ye Sun
Keyword(s):  
Experimental Study ◽  
Failure Mode ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Fe Analysis ◽  
Fiber Reinforced ◽  
Concrete Member ◽  
Strength Concrete ◽  
Nonlinear Fe Analysis

This paper deals with high-strength concrete structure with carbon fiber reinforced plastic (CFRP) strips bonded to the shear face. The first part deals with an experimental study. The fiber reinforced plastics strengthened concrete member test presents a failure mode with debonding of the external CFRP strips from the concrete member. The second part deals with a nonlinear FE analysis with LS-DYNA . Considering of the adhesive layer, explicit finite element is used for simulating the shear failure of CFRP-strengthened concrete, obtain the whole process of structure deformation development and describe the conformation and development of crack and the failure mode. The FE results are compared with the experimental results.

scholarly journals QUALITY CONTROL AND S VALUE OF STRENGTH IN HIGH STRENGTH CONCRETE STRUCTURE USING SIMPLE ADIABATIC CURING

2002 ◽  
Vol 8 (15) ◽  
pp. 11-14
Author(s):  
Kazuhiko TATEMATSU ◽  
Junji YAMASAKI ◽  
Kin-ichi TAKAMI ◽  
Mamoru SUZUKAWA
Keyword(s):  
Quality Control ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Strength Concrete

scholarly journals Experimental research on preparation of high strength concrete with rice husk ash instead of silica fume

2021 ◽  
Vol 233 ◽  
pp. 01053
Author(s):  
Yang Ming ◽  
Pengliang Sun ◽  
Ping Chen ◽  
Yuanhao Wang ◽  
Ling Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Silica Fume ◽  
Experimental Research ◽  
Rice Husk ◽  
High Strength Concrete ◽  
Rice Husk Ash ◽  
High Strength ◽  
Enhancement Effect ◽  
Strength Concrete ◽  
Grinding Time

The effect of grinding time on the properties of low-temperature rice husk ash was experimentally studied, and the feasibility of using rice husk ash instead of silica fume to prepare concrete was studied by comparison with silica fume. The results showed that the best grinding time of rice husk ash is 50 minutes, the concrete with similar properties can be prepared by replacing silica fume with super-fine rice husk ash, and the same enhancement effect can be achieved when replacing silica fume with more than 5%, and the performance was consistent.

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