Phase behaviour and physicochemical study of Karanj oil-ethanol microemulsion as alternative renewable biofuel (original) (raw)

Suitability of Synthetic Fiber for the Construction of Concrete Pavements

2014

A pavement concrete undergoes dynamic loading and rigorous environmental conditions. Development of shrinkage cracks in plain cement concrete pavements is a major problem especially in tropical regions. To overcome this problem sometime the addition of synthetic fiber to the concrete mix is suggested. This paper briefly discusses the effects of the addition of polypropylene (PP) multifilament and fibrillated fibre on the properties of a paving grade concrete mix of compressive strength 48 MPa and flexural strength 5.4 MPa at 28-day. Concrete mixes containing different dosage of multifilament and fibrillated fiber besides one control mix were used. The important properties of the concrete relevant to its use in pavement such as flexural strength, drying shrinkage, and abrasion resistance etc. were evaluated. The study suggested a significant reduction in drying shrinkage, better resistance to abrasion, and strengths at least at par with controlled concrete for the concrete mixes rein...

Suitability of Concrete Reinforced with Synthetic Fiber for the Construction of Pavements

2013

Shrinkage cracking of concrete is a major problem in plain cement concrete pavements especially in tropical regions. To overcome shrinkage cracking of plain concrete, sometimes the addition of synthetic fiber to the concrete mix is suggested. This paper briefly discusses the effects of addition of polypropylene discrete and fibrillated fibre on the properties of a paving grade concrete mix of 48 MPa compressive strength at 28-day. Six concrete mixes with fiber dosages 0.05%, 0.10% and 0.15% by volume fraction besides the control concrete mix were manufactured. Discrete and fibrillated polypropylene fiber was used in this study. The properties such as settlement, compressive strength, drying shrinkage, and abrasion resistance of the concrete were evaluated. The study suggested a significant reduction in settlement and drying shrinkage without significant change in compressive strength for the concrete mixes reinforced with fiber. Further, an improved abrasion resistance for the concr...

Comparative Study of the Natural Fiber and Artificial Fibre as an Admixture in M30 Grade Concrete

International Journal of Inventive Engineering and Sciences, 2020

The Sugarcane Bagasse which is produced in tones every year which can cause inconvenience to environment, we use this material as one of the admixtures in the concrete mix to reduce its effect on surroundings. As we add the material, we can economize the total expenditure on the construction. By using this we are able to improve the ordinary Portland cement through means of strength which can rise the durability of the structure. By using these materials in proportions, we produce various nominal conventional concrete mixes which are very economical and suitable for any environmental conditions. We want to use the sugarcane bagasse as the main source is an eco-friendly material, but only with this material we can’t get good strength hence it imparts strength to the concrete we are using the combination of the sugar cane bagasse and the optical fiber as an admixture. Here the test results give good improvement. Hence low-cost materials with good strength is obtained.

Study on Use of Polymeric Waste Materials in Concrete for Road Pavements

2015

Concrete is strong in compression but weak in tension and brittle also. Cracks also start forming as soon as the concrete is placed. These 3 drawbacks don’t permit the use normal concrete in pavements as they lead to lack of ductility along with fracture and failure. These weaknesses in concrete can be mitigated by using fibers as reinforcement in the concrete mix. Waste materials in the form of polyethylene and tires cause environmental pollution which leads to various health problems. Polyethylene and waste tires can be recycled and used effectively in the concrete as reinforcement in the fiber form. Polyethylene is a synthetic hydrocarbon polymer which can improve the ductility, strength,shrinkage characteristics etc. This paper deals with the effects of addition of polyethylene fiber on the properties of concrete. Polyethylene and tire fibers were cut into the size of 30mm x 6mm and they were used 1.5% each by volume. Grade of concrete used were M30,M35 and M40. IRC 44:2008 was ...

Utilization of Fibers in Construction Industries for Properties Improvement of Concrete

IJSRD, 2013

Today Construction industries are facing problems of Cracking and Tensile strength problems, for that we have to add something in concrete to improve concrete in tensile way. For that Fiber is most commonly used in construction industries. In this present study we have try to aware people about various types of Natural and Artificial Fiber like Jute, Coir, Bamboo, Bagasse, Glass, Carbon, Steel Fibers with its properties and its application in various area. In this study we have also tried to give information regarding Fiber Reinforced Concrete with its application in Construction industries for Better Performances. So from this Paper a reader can get Knowledge about Properties of Various Fibers and Various Fiber Reinforced Concrete for Betterment of Construction industries.

UTILIZATION OF NATURAL FIBER IN CONCRETE -A REVIEW

In the field of agriculture, huge quantities of waste are generated from different crops. The waste so generated is generally left untouched on the land which affects the fertility of soil or if the waste is burnt, it affects the environment. This waste contains large quantities of fiber which can be utilized in concrete to reduce the amount of waste and indirectly the cost of concrete. This paper reports review on different types of natural fibers such as industrial hemp, palm, coconut, san and banana leaves fibers that can be utilized in concrete and effect of such fibers on properties of concrete containing fibers. Such materials would increase the service life and reduce the life cost of the structure and would have appositive effect on social life and social economy.

Concrete reinforced with 0.1 vol% of different synthetic fibers

Life Science Journal

This paper documents the effect of fibers type on different physical and mechanical properties of concrete. Four types of fibers, such as steel, polypropylene, glass, and carbon were investigated. The concrete specimens with and without fibers were cast and tested to watch the improvement of certain mechanical and physical properties like compressive, tensile strengths, workability and density. Fibers were added at the rate of 0.1 vol percent of concrete, while all the other ingredients were kept same at identical laboratory conditions. It was observed that type of fiber has huge impact on the workability of the concrete. Only steel fibers enhance the density of concrete, It was also found that the given fiber dosage enhances the early compressive strength of concrete but reduces the 28 days compressive strength. Steel fibers increase the tensile strength more than any other fiber used during this study. It was noticed that addition of fibers in concrete largely improves the failure...

Recycled synthetic waste fibres for the reinforcement of concrete

In this paper the mechanical performances of concrete reinforced with synthetic waste fibres have been investigated. The tests were carried out to examine the effect of the length and the dosage of synthetic waste fibres on the workability, the flexural strength and the compressive strength of concrete. Several concretes were fabricated with three weight contents, 0.25, 0.5 and 1% of 30, 50 and 70 mm long fibres. On the basis of the tests performed, the addition of synthetic waste fibres to the different concretes has a negative effect on their workability but a positive effect on their mechanical behaviour. This effect of fibres is more significant with higher amount (1%) of longer fibres (l f = 70 mm).