TOPIC

HARDENED MECHANICAL PROPERTIES OF SELF-COMPACTING CONCRETE

Farhan Qasim. Arif Rasheed. Asmat Ali. Murad Khan. Atiq Ahmad Jan.

Project Members

Concrete: It occupies unique position among the modern construction materials.

INTRODUCTION

Concrete that can flow under its own weight to completely fill the form work and self consolidates without any mechanical vibration.

Self – Compacting Concrete (SCC):

The process of selecting suitable ingredients of concrete and determining their relative amounts with an objective of producing a concrete of required strength, durability, and workability as economically as possible.

Concrete Mix Design

The problem in placing of concrete in the region where vibrator are not accessible.

The cage made is so congested because of which concrete does not place accurately.

Problem statement:

The self compacting concrete are playing a very good role because SCC is self placing with the help of its own weight.

Solution

To find the harden mechanical properties of SCC.

To know the details of SCC and improve our construction sites.

Apply it in Pakistan.

Objective:

Study the research paper for achieving details. Study different tests for SCC. Do the tests practically.

Methodology

Flow table test Slump test L-box test J ring test

Tests For SCC.

U-box test Fill fox test V.funnel test Preparation of SCC specimen. These tests can be performed when concrete is in initial stage.

Tests For SCC.

Compressive strength. In all SCC mixes compressive strengths of standard cube specimens were comparable to those of traditional vibrated concrete made with similar water -cement ratios if anything strengths were higher.

Mechanical Properties of Harden Concrete

Tensile strength was assessed indirectly by the splitting test on cylinders.

For SCC, both the tensile strengths themselves, and the relationships between tensile and compressive strengths were of a similar order to those of traditional vibrated concrete.

Tensile strength

Results available indicate that the relationships between static modulus of elasticity and compressive strengths were similar for SCC and the reference mixes.

A relationship in the form of E/ (fc) 0.5 has been widely reported, and all values of this ratio were close to the one recommended by ACT for structural calculations for normal weight traditional vibrated concrete

Modulus of Elasticity

.Thank You