high slump concrete, also called’slumpy concrete’, has higher workability than traditional concrete mixes. However, there are many issues associated with this type of concrete and it is important to be aware of them.
The main reason for this is that high slump concrete has a high water-cement ratio which reduces the durability and strength of the finished concrete. It is also very hard to work with as a result of its poor consistency.
There are various techniques and solutions adopted by engineers in order to solve this problem. The use of superplasticizers is one such solution which can be used to increase the slump of the concrete mix without changing the water-cement ratio.
A superplasticizing admixture can be added to the concrete as per the specifications of the concrete mix design. The concrete can be given a higher slump value to achieve a better compressive strength.
Another way to increase the slump of concrete is by adding more water. But it is necessary to keep in mind that the more water you add, the higher the risk of cracking and reduced density as well as increased porosity.
The best solution is to pour a stiff, low-water-content mix. This is easy to tell apart from concrete with a lot of added water as the latter will be much more difficult to work with and may even require additional sand or gravel.
Using a’slump cone’ is the easiest and most reliable method of determining the slump value of a concrete mixture. To do this, fill a slump cone with the prepared concrete and then carefully remove it. Then, measure the vertical distance between the top of the cone and the top of the concrete.