'Autogenous shrinkage' diaporamas de présentation

Controlling Technology for Concrete Cracking

Controlling Technology for Concrete Cracking. Changwen Miao. Southeast university Jiangsu Research Institute of Building Science State Key Laboratory of High Performance Civil Engineering Materials July, 2012. Outlines. Harmfulness of concrete cracking Main reasons for concrete cracking

1.28k views • 63 slides

Do Concrete Materials Specifications Address Real Performance?

837 views • 60 slides

387 views • 26 slides

Prediction Model for Autogenous Shrinkage of Concrete with Different Type of Cement

Prediction Model for Autogenous Shrinkage of Concrete with Different Type of Cement. Shingo Miyazawa Department of Civil Engineering, Ashikaga Institute of Technology Ashikaga, Japan Ei-ichi Tazawa Research and Development Initiative, Chuo University Tokyo, Japan.

545 views • 26 slides

263 views • 26 slides

Dale P. Bentz dale.bentz@nist

Internal Curing: Basic Principles and Future Visions. ? 5 cm ?. Dale P. Bentz dale.bentz@nist.gov. 4.6 mm on a side. Question: What is internal curing (IC)?

456 views • 24 slides

Dale P. Bentz dale.bentz@nist

Internal Curing: Basic Principles and Future Visions. ? 5 cm ?. Dale P. Bentz dale.bentz@nist.gov. 4.6 mm on a side. Question: What is internal curing (IC)?

247 views • 24 slides

Fourth International Seminar on Self-desiccation and Its Importance in Concrete Technology

1. An Investigation of Prediction Model for Autogenous Shrinkage/Expansion Strain of Low-shrinkage HSC. Makoto TANIMURA, Yuji MITANI Taiheiyo Cement Corporation, Japan Ryoichi SATO Hiroshima University, Japan.

362 views • 22 slides

Fourth International Seminar on Self-desiccation and Its Importance in Concrete Technology

1. An Investigation of Prediction Model for Autogenous Shrinkage/Expansion Strain of Low-shrinkage HSC. Makoto TANIMURA, Yuji MITANI Taiheiyo Cement Corporation, Japan Ryoichi SATO Hiroshima University, Japan.

230 views • 22 slides

Takafumi Noguchi The University of Tokyo, Japan Park Sun-Gyu Yonsei University, Korea

Mechanical Properties of HPC with Expansive Additive and Shrinkage Reducing Admixture under Simulated Completely-Restrained Condition at Early Age. Takafumi Noguchi The University of Tokyo, Japan Park Sun-Gyu Yonsei University, Korea Ippei Maruyama Hiroshima University, Japan. Background.

338 views • 17 slides

Microcrack Detection in High-Performance Cementitious Materials

Microcrack Detection in High-Performance Cementitious Materials. Pietro Lura, Ye Guang, Kyoji Tanaka, and Ole Mejlhede Jensen. Early-age cracking. Tokyo Institute of Technology, Yokohama, Japan. Microcracking. (Bisschop & van Mier 2002). Chemical shrinkage. Autogenous shrinkage.

341 views • 17 slides

Takafumi Noguchi The University of Tokyo, Japan Park Sun-Gyu Yonsei University, Korea

Mechanical Properties of HPC with Expansive Additive and Shrinkage Reducing Admixture under Simulated Completely-Restrained Condition at Early Age. Takafumi Noguchi The University of Tokyo, Japan Park Sun-Gyu Yonsei University, Korea Ippei Maruyama Hiroshima University, Japan. Background.

177 views • 17 slides

Microcrack Detection in High-Performance Cementitious Materials

Microcrack Detection in High-Performance Cementitious Materials. Pietro Lura, Ye Guang, Kyoji Tanaka, and Ole Mejlhede Jensen. Early-age cracking. Tokyo Institute of Technology, Yokohama, Japan. Microcracking. (Bisschop & van Mier 2002). Chemical shrinkage. Autogenous shrinkage.

202 views • 17 slides

A TRIAL OF REDUCING AUTOGENOUS SHRINKAGE BY RECYCLED AGGREGATE

A TRIAL OF REDUCING AUTOGENOUS SHRINKAGE BY RECYCLED AGGREGATE. Ippei Maruyama Ryoichi Sato. Objective. High-Strength Concrete has a risk of early age cracking due to authogenous shrinkage. How to control the risk of early-age cracking?. Background. Countermeasures: -Expansive additive

126 views • 12 slides

MECHANISMS

Autogenous Shrinkage as a Viscoelastic Response to Self-Desiccation. s. s. ?. MOTIVATION. MEASUREMENTS. MODEL BASICS. FUTURE WORK. EXPERIMENTAL RESULTS. Embedded pins for length measurement. Embedment strain gage. Strain indicator box. Hydraulic pump and pressure regulator.

131 views • 1 slides