ACI Global Home Middle East Region Portal Western Europe Region Portal
Email Address is required Invalid Email Address
In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Learn More
Become an ACI Member
Topics In Concrete
Home > Frequently Asked Questions
In This Section
Frequently Asked Questions
Submit a Question
Search other resources on the ACI website for answers to technical questions
Q. If the paste is ample in amount, but is too thin and watery to float the aggregate particles, what is the result? A. The mixture will segregate in handling and placing. The thin paste and some of the fines in the fine aggregate will separate from the coarse particles to form laitance layers at the top of the mass, under larger aggregate particles, and will leave an inhomogeneous concrete below the weak top layer. References: SP-1(02); ACI 304R-00 Topics in Concrete: Concrete Fundamentals; Placing
Q. If the paste is ample in amount, but is too thin and watery to float the aggregate particles, what is the result?
A. The mixture will segregate in handling and placing. The thin paste and some of the fines in the fine aggregate will separate from the coarse particles to form laitance layers at the top of the mass, under larger aggregate particles, and will leave an inhomogeneous concrete below the weak top layer.
References: SP-1(02); ACI 304R-00
Topics in Concrete: Concrete Fundamentals; Placing