Experimental Investigation on Polypropylene Fiber Reinforced Concrete With Artificial
The paper presents research work of experimental investigation on polypropylene fiber reinforced concrete by replacing river sand to artificial sand with and without admixture. Use of fiber reinforce polymer in civil engineering increase rapidly. Various type of fiber is used such as glass, carbon, steel, asbestos, polyester and polypropylene. The various experimental investigations for determination of properties of polypropylene fiber are discussed in paper work. This paper presents the effect of polypropylene (PP) fibers on various properties of concrete such as compressive strength, tensile strength, workability, and fracture properties with various content of fiber(0% ,0.5%,1.0%,1.5%). The result of this present investigation indicates that by adding of 0.5% of polypropylene fiber shows maximum compressive and tensile strength.
A Study on Usage of Polypropylene Fiber in Cement Concrete Pavement
India has a road system of more than 4.87kilometers according to MORTH, Techier Research July 2015 and the second biggest road system on the planet. Development of Road and Highways are the foundation of infrastructure improvement upgrading the vital main thrust to accomplish quick and supported economic growth in the changing technological innovation. It is undoubtedly the lifeline of the nation which is a never ending process activity in India. Because of rising oil costs and a more tightly monetary environment, cement is turning into a more alluring choice for base venture comprehensively contrasted with conventional bituminous asphalts. The Ministry of Road Transport and Highways in India noticed that advanced society can't work adequately without concrete roads. Cement has a few deficiencies as low tensile strength, limited fatigue life and is characterized by brittle failure resulting in nearly complete loss of loading capacity, once failure is initiated. This paper manages exploratory examination on mechanical properties of M30grade concrete by adding polypropylene fibers in the blend at measurements of 0.5%, 1%, 1.5%, 2%, 2.5% by weight of cement added to the mix. A comparative analysis has been carried out for conventional concrete to that of the fiber reinforced in relation to compressive, tensile and flexural strengths.
Communicative Competence: Theory and Classroom Practice
ABSTRACT Within the framework of viewing communicative competence as a prerequisite to linguistic competence, rather than vice versa, this paper considers the following: (1) the nature of communicative competence; (2) the implications of communicative competence for second language teaching; and (3) ways in which the teacher can begin to make a foreign language program more meaningful. Communicative competeuce is defined as what native speakers know which enables them to interact effectively with each other. Implications for the language teacher include: (T) the need for tests which measure the ability to use language; (2) the irrelevancy of sequencing surface features; (3) the need for emphasis on non-lizguistic aspects of communication; and (4) the need to re-examiLe attitudes toward students and language teaching. Practical suggestins for implementing communicative competence in the classroom include the use of spontaneous role-playing, discussions, games, radio, and the telephone. (AM)