Insight Sharing | Technical Details of Rebound Method for Testing Concrete Compressive Strength

The rebound method is the most commonly used and convenient non-destructive method for on-site testing of concrete compressive strength.

However, different personnel often have differences in the testing results of the same component, which is often not a problem with the instrument, but rather due to differences in understanding and operational details of the “Technical Specification for Testing Concrete Compressive Strength by Rebound Method” (JGJ/T 23-2011).

Cast In Plate

The key to mastering the essence of this regulation lies in understanding “why” rather than just “what to do”.

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Does the concrete test block you made meet the requirements?

The quality of concrete test block production, in a sense, determines the engineering quality of a project.

Nowadays, commercial concrete is used on construction sites.

Cast in Loop

If the concrete test block produced is not qualified, rebound or core sampling will be carried out, which will inevitably cause a waste of money and energy and bring great pressure to the work.

Therefore, it is particularly important to make good concrete test blocks.

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The preferred method for testing the solid strength of concrete specimens cured under the same conditions at 600 ℃. d

The same condition curing specimen refers to a concrete specimen that uses the same raw materials, mix proportions, and mixing processes as the structural solid concrete, and is cured under the same conditions.

This testing method can truly reflect the actual strength development of structural concrete entities and is the preferred method for testing the strength of concrete entities.

Shuttering Magnet

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55 small crafts for improving quality and efficiency on construction sites! Did you use it?

Zhongtian Construction Tianjin Company has summarized its experience and promoted the implementation of 55 small processes (components) in construction projects, helping to improve the quality and efficiency of the projects.

Metal Rebar Caps

The small processes have achieved great results for everyone’s reference and learning!.

Innovative Application and Development Prospects of Construction Technology in Jiangsu Province (II) Innovative Application of Concrete

In recent years, Jiangsu’s construction industry has maintained strong innovation momentum in the field of construction technology, focusing on the core technical pain points in project construction practice and industry development process.

With policy guidance as the support, technological breakthroughs as the core, and industry chain coordination as the link, it continues to explore and break through, nurturing a large number of high-quality construction technology achievements that combine practical value and promotion prospects, as well as social and economic benefits, fully demonstrating the industry’s leading technological innovation hard power.

Shuttering Magnet

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Quick report: Production and economic indicators of concrete and cement products industry from January to November 2025

According to data analysis from the National Bureau of Statistics, from January to November 2025, the cumulative output of key products in the concrete and cement products industry will decline comprehensively.

Rebar Wheel Spacers

Among them, the cumulative production decline of commercial concrete remained unchanged from January to October, while the cumulative production decline of concrete poles and precast concrete piles narrowed compared to January to October.

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