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Can You Pour Concrete Against Concrete?

Can You Pour Concrete Against Concrete?

Pouring a new layer of concrete on top of an existing layer can be advantageous for certain applications, providing increased structural strength and improved water drainage. However, there are drawbacks associated with this practice, such as poor adhesion between layers leading to cracking or shifting and higher cost associated with multiple-layer pours. Additionally, different types of cement used in each layer can cause chemical reactions that negatively affect performance. It is important to research the pros and cons before beginning any project involving pouring concrete against existing concrete.