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
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.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Experimental Investigation into Mechanical Properties of Polypropylene Reactive Powder Concrete
Author(s): Yang Ju, Li Wang, Hongbin Liu, and Guowei Ma
Publication: Materials Journal
Appears on pages(s): 21-32
Keywords: enhancement mechanism; fiber volume fraction; mechanical properties; polypropylene fiber (PP fiber); reactive powder concrete (RPC)
Abstract:This paper experimentally investigates the effects of embedded polypropylene fibers (PP fibers) on the mechanical properties—
including compression strength, split tensile strength, flexural strength, fracture ductility, and fracture energy—of ultra-high strength reactive powder concrete (RPC). A large-scale laser
profilometer was employed to obtain the three-dimensional (3-D) geometry of the fracture surfaces of the prism specimens after three-point bending tests. Scanning electron microscopy was used to characterize the microstructure of the fibered RPC. Experimental results indicate that the addition of PP fibers with a volume fraction ρv less than 0.3% had insignificant effects on the mechanical strengths of RPC. The addition of PP fibers with ρv ranging between 0.3 and 0.9% improved the mechanical strengths and the fracture performances. All the measured mechanical properties of the fibered RPC decreased to a certain extent, as ρv exceeded 0.9%. The reinforcement mechanisms of the PP fibers in RPC are analyzed and discussed.
Click here to become an online Journal subscriber