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
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
Staff Directory
ACI World Headquarters 38800 Country Club Dr. Farmington Hills, MI 48331-3439 USA Phone: 1.248.848.3800 Fax: 1.248.848.3701
ACI Middle East Regional Office Second Floor, Office #207 The Offices 2 Building, One Central Dubai World Trade Center Complex Dubai, UAE Phone: +971.4.516.3208 & 3209
ACI Resource Center Southern California Midwest Mid Atlantic
Feedback via Email Phone: 1.248.848.3800
Home > Tools > Frequently Asked Questions
Q. What are high-density aggregates? A. High-density aggregates generally consist of high-density minerals or rocks, or they consist of man-made materials, such as steel or iron. High-density aggregates are used to produce concrete that has higher than normal density, usually for radiation shielding or an application where high-density concrete is needed for counter balancing, ballasting, or stabilizing. High-density concrete may be used in sound or vibration attenuation and in improving the abrasion resistance in industrial facilities (ACI 221R). References: SP-1(02); E-1(16); ACI 221R-96; ASTM C33 Topics in Concrete: Aggregate; Concrete Fundamentals; Materials
Q. What are high-density aggregates?
A. High-density aggregates generally consist of high-density minerals or rocks, or they consist of man-made materials, such as steel or iron. High-density aggregates are used to produce concrete that has higher than normal density, usually for radiation shielding or an application where high-density concrete is needed for counter balancing, ballasting, or stabilizing. High-density concrete may be used in sound or vibration attenuation and in improving the abrasion resistance in industrial facilities (ACI 221R).
References: SP-1(02); E-1(16); ACI 221R-96; ASTM C33
Topics in Concrete: Aggregate; Concrete Fundamentals; Materials
Search other resources on the ACI website for answers to technical questions