Performance of Controlled Low Strength Material Using Onion Peel Ash

Performance of Controlled Low Strength Material Using Onion Peel Ash
Author(s):
QUDSIYA ZAHERA HAIDRY
Keywords:
Controlled low strength material, Fly ash, Onion Peel Ash, Portland cement, Unconfined compressive strength.
Abstract
Controlled low strength material (CLSM) is a highly flowable material comprised water, cement, and fly ash (FA) but often contain waste by-product material. These are characterized by very high workability and lesser compressive strength. CLSM is used mainly for filling cavities and trenches in civil engineering works where the application of granular fill is either impossible or difficult. CLSM’s are engineered materials that have a specified compressive strength of 8.3 MPa or less at 28 days. If future excavation is desired, the compressive strength should be <1.03 MPa. In the present study, the engineering behavior of proposed fly ash based material prepared by blending fly ash with Onion Peel Ash and a binder such as ordinary portland cement through the laboratory experimental study. The experiments were conducted by adding OPA and fly ash with different mix ratios and percentages. The mix ratios 80%, 70% and 50% were used in the study. The cement to fly ash C/FA ratios were considered as 20%, 30% and 40% and the Onion Peel Ash was added in different percentages as 8%, 10% and 20%.
Article Details
Unique Paper ID: 155107 Publication Volume & Issue: Volume 8, Issue 12 Page(s): 1545 - 1556
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