Abstract
Slurry Infiltrated Fiber Concrete (SIFCON) is a high-strong material that is regarded as a unique type of high fiber content concrete. This paper aims to study the influence of the use of plastic strips and plastic sheets in the SIFCON slurry. Three sets (normal SIFCON as control, SIFCON with plastic strips, and SIFCON with plastic sheet), in a 1:1.08 cement-sand ratio by weight has been used with water to cement ratio (w/c) by weight equal to 0.3, and superplasticizer equal to 1% by weight. In addition, 6% by volume crimped steel fibers with an aspect ratio of 60 were applied and 1.34% by volume plastic was used, in strips of 5×1cm for both prism and cube samples and in sheets of 25×5cm and 7×7cm for prism and cube samples respectively. The compressive and flexural strength tests studies were conducted on typical cubes of 10×10×10cm and prisms of 40×7×7cm respectively to find out the way the plastic affects the SIFCON properties. The results indicate that the models with plastic sheets placed in SIFCON slurry give the highest compressive and flexural strength whereas the models with plastic strips gave the lowest. The difference percentages in compressive and flexural strength were -27.3, 8, -3.8 and 66.6% for all sets respectively when compared to the control set (using no plastic).
Highlights
There is a need to develop new forms of concrete that utilize fieldwork at reduced cost and in less time, theoretical studies have been conducted utilizing building materials, additives, and sustainable materials of variopus types to create and discover types of concrete other than the conventional concrete, one of which is the Slurry Infiltrated Fiber Concrete (SIFCON)
The outcomes show that adding plastic sheet in the SIFCON mixture gives higher results than the mixture with the plastic strips and the control, while the results of plastic strip SIFCON are lower than the other two sets
Incorporating plastic strips along with steel fibers inside the SIFCON slurry reduces the outcomes of compressive and flexural strength tests due to the cross section of the plastic strips used which leads to uneven steel fiber distribution in the samples
Summary
There is a need to develop new forms of concrete that utilize fieldwork at reduced cost and in less time, theoretical studies have been conducted utilizing building materials, additives, and sustainable materials of variopus types to create and discover types of concrete other than the conventional concrete, one of which is the Slurry Infiltrated Fiber Concrete (SIFCON). SIFCON is developed by increasing the percentage of steel fibers in the cement slurry. It has exceptionally high strength as compared to steel fibers reinforced concrete. SIFCON's matrix has no coarse particles but a high concentration of cementitious component It may, incorporate fine (or coarse) sand as well as additives such as fly ash, micro silica, and latex emulsions. SIFCON is being frequently used, in seismic modification design and in constructions subjected to impact forces. It exhibits novel behavioral phenomena such as the fiber lock [3]. It is used in military structures against blasts, industrial sites, runways, and bridge foundations [3, 4]
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