This is due to the reason that the flexural strength of the concrete which is the important factor can we well analyzed. 2) LIFE: Cement concrete slabs of thin section constructed in the early 1940’s are still subsistence in India, though many of them cracked badly. But the fact is that they are still
Natural river sand .Mix design M25 concrete with replacement of 0%, 20%, 25%, 30% and 35% of quarry dust prepared as M1, M2, M3, M4 & M5 respectively, were considered for laboratory analysis for slump test, compaction factor test, compressive strength test, split tensile strength test and flexural strength of hardened concrete using quarry dust was
CHAPTER NO. 4 EXPERIMENTAL SET-UP Different Tests and Equipment 4.1 Slump-flow test 4.2 L-box test 4.3 U-box test 4.4 V-funnel test 4.5 Compressive strength test 4.1 SLUMP FLOW TEST The slump flow is used to assess the horizontal free flow of SCC in the absence of obstructions. It was first developed in Japan for use in assessment of underwater concrete. The test method is based on the method for determine the slump. The diameter of the concrete circle is a measure for the filling
construction industry, thereby tremendously increasing the economic importance of Bamboo and its resources. Extensive studies have shown that in Sri Lanka Bamboo is a very suitable material for scaffolding during construction given its durability and strength. Bamboo is an extremely stable green reinforcement building appliance, it is easily accessible and readily workable (SAITM – RSEA 2013). 4.2 Physical and mechanical properties of Bamboo Bamboo and wood has a wide range of difference which is not
Fly ash is a by-product of coal combustion in power plants. Fly ash contains silica, alumina, and different oxides and alkalis in its composition (Das, 1990). Its general appearance is light to dark gray powder and the size is the same as silt. The specific gravity of fly ash ranges from 1.9 to 2.5. There are two types of fly ash: type “C” and type “F”. Type “C” fly ash has significant amount of free lime. This type of fly ash causes pozzolanic and cementitious reactions. Addition of fly ash to lime
stress in tension fbt or in compression fbc is given by fbc =fbt = 0.66fy Compression members: i. The design compressive strength Pd , of a member is given by: P < Pd Where Pd = Aefcd Where Ae = effective sectional area fcd = design compressive stress. ii. The design compressive stress, fcd, of axially loaded compression members shall be calculated using the following equation: Where
POFA into cement provide adequate compressive strength up to 8.89 N/mm² that exceed the minimum requirement, tolerable water absorption and acceptable heavy metals leachate. 2. Syahrul Hisyam bin Mohd Sani, M., & Rahman, M. A. (2011). Properties of waste paper sludge ash (WPSA) as cement replacement in mortar to support green technology material. The compressive strength is increasing with increasing of curing age for all mixes. However, the compressive strength decreased when the WPSA increased
energy sources and lessen the burden of pollutants on environment. Presently large amounts of silica fume and steel slag are generated in industries with an impact on environment and humans. Conventional concrete has two major drawbacks: low tensile strength and a destructive and brittle failure. In an attempt to increase concrete ductility and energy absorption, fibre reinforced concrete has been introduced. The present investigation revealed the effect of using silica fume and steel slag as a partial
01) Schmidt Hammer Test Introduction Schmidt hammer test is mostly used to determine the compressive strength of any erected concrete structure. And that is also called as a Swiss hammer or a rebound hammer. Schmidt hammer is a device to measure compressive strength of concrete or rock, mainly using surface hardness and penetration resistance. This instrument portable and easy to handle in any places. Test Apparatus N-Type Schmidt Hammer Carborundum Stone 150mm×150mm×150mm G30 One month aged
investigation the reinforcement effect of Kevlar fabric on the mechanical properties of epoxy resin are studied. The epoxy resin used in the current investigation is Bisphenol A. The mechanical properties studied are tensile strength, bending strength and compressive strength. The reinforcement of above mentioned materials have proved its effect in the improvement of the mechanical properties of epoxy resin. 1. Introduction Epoxy resins offer unique combination of mechanical properties which are