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EXPERIMENTAL RESEARCHES ON USE OF WASTES IN FLY ASH CONCRETE

Timu, A.; Barbuta, M.; Serbanoiu, A. A.; Babor, D.; Burlacu, Dr. A.
Abstract:
New building materials were obtained in the last decades by using different types of cements, aggregates, additives or additions. Additions such as s powder, aggregate, fiber, etc. were tested for obtaining new properties of concrete or for finding a way to consume the wastes. The paper presents the experimental results obtained on fly ash concrete with waste fibers. The concrete was prepared with substitution of cement with fly ash in different dosages (10%, 15%, 20%, 30% and 40%) and two types of fibers (hemp and PET). Physical and mechanical characteristics such as density of hardened concrete, compressive strength, flexural strength and split tensile strength were analyzed in comparison with a control fly ash concrete without fiber. All values of densities indicated that concretes are normal heavy concretes. For compressive strength and split tensile strength the highest values were obtained for concrete with 20% fly ash and PET fiber. For flexural strength the highest value was obtained for concrete with 15% fly ash and hemp fibers. Better values of all mechanical strengths were obtained for concrete with hemp fibers.
SGEM Research areas:
Year:
2017
Type of Publication:
In Proceedings
Keywords:
cement concrete; fly ash; hemp fiber; PET fiber; mechanical properties
Volume:
17
SGEM Book title:
17th International Multidisciplinary Scientific GeoConference SGEM 2017
Book number:
62
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
163-168
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
29 June - 5 July, 2017
ISBN:
978-619-7408-13-3
ISSN:
1314-2704
Conference:
17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
DOI:
10.5593/sgem2017/62/S26.021
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