Related Experiment Video
Updated: Jul 27, 2025
11:07
Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior
Published on: June 27, 2018
11.2K
Experimental Study on Lap-Spliced Performance of High-Strength Stainless Steel Wire Mesh in Engineering Cementitious
Xuyan Zou1, Xiyuan Zhang2, Ziyuan Li2
1School of Civil Engineering, Zhengzhou University of Technology, Zhengzhou 450044, China.
Materials (Basel, Switzerland)
|June 10, 2023
Summary
This study examined high-strength stainless steel wire mesh (HSSSWM) in Engineering Cementitious Composites (ECCs). Lap length impacts slip and stiffness, but decreases bond strength, leading to a new lap strength formula.
Area of Science:
- Materials Science
- Civil Engineering
- Structural Engineering
Background:
- Engineering Cementitious Composites (ECCs) offer enhanced ductility and crack control.
- High-strength stainless steel wire mesh (HSSSWM) is utilized as reinforcement in ECCs.
- Understanding the mechanical properties and lap-spliced performance of HSSSWM in ECCs is crucial for structural applications.
Purpose of the Study:
- To investigate the mechanical properties of HSSSWM in ECCs.
- To determine an optimal lap length for HSSSWM reinforcement in ECCs.
- To establish a calculation formula for lap strength.
Main Methods:
- Fabrication of 39 specimens in 13 sets, varying steel strand diameter, transverse steel strand spacing, and lap length.
- Pull-out testing to evaluate the lap-spliced performance of HSSSWM in ECCs.
- Experimental analysis to identify failure modes and influencing factors.
Main Results:
- Identified two failure modes: pull-out and rupture.
- Transverse steel strand spacing minimally affected ultimate pull-out force but influenced longitudinal strand slip.
- Increased lap length enhanced slip and lap stiffness but reduced ultimate bond strength.
Conclusions:
- A calculation formula for lap strength, incorporating a correction coefficient β, was developed based on experimental findings.
- The study provides insights into optimizing HSSSWM reinforcement in ECCs.
- Findings contribute to the design and application of advanced cementitious composites.
Related Concept Videos
01:16Tensile Strength Considerations of Concrete
157
Considering the tensile strength of concrete involves recognizing that the theoretical strength of cement paste can be up to a thousand times higher than what is observed in practical applications. This significant discrepancy is largely attributed to the presence of microscopic cracks within the concrete. These cracks tend to amplify stress at their tips when a load is applied, a phenomenon explained by Griffith's theory of brittle fracture.
The dimensions and shape of a concrete specimen...
The dimensions and shape of a concrete specimen...
157
01:22Fiber Reinforced Concrete
108
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
108
01:20Strength of Cement
173
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
173
01:18Mechanical Characteristics of Steel
616
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
616
01:25Reinforcements in Concrete
122
Reinforced concrete is a composite material used extensively in construction, combining the compressive strength of concrete with the tensile strength of steel. This synergy is essential as concrete, while excellent at resisting compression, is weak under tension. Steel bars, or rebars, are embedded in the concrete to handle these tensile forces. The choice of steel is strategic; it shares a similar coefficient of thermal expansion with concrete, which ensures uniformity in response to...
122
01:30Relation Between Tensile Strength and Compressive Strength of Concrete
263
Concrete is a fundamental building material, and understanding its strengths is crucial for construction projects. The relationship between its tensile and compressive strengths is intricate, showing that while these strengths are related, they do not increase at the same rate. Tensile strength's growth is slower and is affected by various factors such as the methods used for testing, the size and shape of the specimen, the texture of the aggregate used, and the moisture content of the...
263