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Oct 3, 2017 · How to run a Concrete Slump Test! Steel Slump Cone Kit - http://amzn.to/2yGiFXf Huge thanks to - http://www.holteng.com Make sure your following Jordan Smith - http://bit.ly/2xQ0Fg8.
- 3 min
- 225.8K
- Matt Risinger
The slump test measures the consistency and workability of fresh concrete. Specifically, it assesses how easily the concrete can be mixed, placed, and compac...
- 3 min
- 371
- Alen Keri
Learn how to perform a concrete slump test with our detailed, step-by-step guide. Ensure you have all the essential tools and personal protective equipment (PPE) before starting. Follow our...
- 4 min
- 17
- GRAHAM Group
- What Is Concrete Slump?
- How Do You Test For Concrete Slump?
- Why Is A Slump Test needed?
- What Happens If The Slump Is Too High Or Low?
- What Is The Best Slump For Decorative Concrete flatwork?
- How Do Water-Reducing Admixtures Affect Concrete Slump?
- What Should You Do When A Load of Concrete Is Too wet?
Slump is a measure of the consistency of a concrete mix, or its ability to flow, and is often used to evaluate how much water has been used in the mix. Concrete with a slump that is low is very stiff, dry, and hard to work with. Concrete with a higher slump is more fluid and workable. Slump values are measured in the number of inches fresh concrete...
Testing for concrete slump is a quick procedure that can be performed on the jobsite using relatively inexpensive, but specialized, equipment. For ready-mix concrete, the procedures for measuring slump are defined by ASTM C143 – Standard Test Method for Slump of Hydraulic-Cement Concrete. The basic items you’ll need to perform the test include a sl...
Knowing what the consistency of your concrete mix is when it arrives on the jobsite allows you to make adjustments to the concrete before placement and prevent potential problems later, after the concrete sets. It also is a way to confirm that the concrete you ordered from the ready-mix supplier is within industry standards specific to its purpose ...
When concrete has a higher-than-specified slump, or is too wet, it becomes weaker and more susceptible to cracking. As a general rule, every additional inch of slump reduces concrete’s compressive strength by about 500 psi. As you increase the amount of water in a mix, you also increase the porosity of the hardened concrete, making it more vulnerab...
For most exterior decorative concrete, a slump ranging from 4 to 5 inches is ideal. You want the mix to be similar in consistency to thick oatmeal, without being watery. Avoid slumps greater than 5 inches because an overly wet mix can reduce overall strength and result in a weak, porous surface.
Water reducers and superplasticizersare great alternatives to increasing the slump of a concrete mix without adding excess water. Not only will these admixtures increase the flow and enhance the workability of a concrete mix, they may also boost the strength because less water is needed, with reductions ranging from 10 to 40 percent, depending on t...
If the slump of the concrete delivered to your jobsite is significantly higher than what the job demands, you should reject the concrete mix or take measures to get it within the desired range. Many specifications permit slump variations of up to 1 inch. If the slump exceeds 1½ inches from what was ordered, the quality of the concrete can be signif...
May 19, 2021 · What is concrete slump? What tools do you need? What is the procedure to test concrete slump? Great questions. Let's break down the tools needed and the testing procedure step by step.
Mar 13, 2019 · Slump tests can be done on-site to check the concrete mix has expected fluid properties. In addition, this test can be used to measures consistency between the individual batches. It is a simple and low-cost test prepared at the laboratory or the site during work.
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Jun 26, 2024 · The concrete slump test, or slump test of concrete, is an essential tool in evaluating these properties, ensuring that your structure is built to last. Let’s dive into the fascinating world of the slump test and discover how it helps maintain the quality of concrete structures.
