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|Title: ||USING MARBLE WASTE POWDER IN CEMENT AND CONCRETE PRODUCTION|
|Authors: ||ABRAR, AWOL|
|Advisors: ||PROFESSOR ABEBE DINKU (Dr.-Ing)|
|Keywords: ||Marble waste powder|
Performance of concrete
|Copyright: ||Mar-2011 |
|Date Added: ||10-May-2012 |
|Abstract: ||In this study, the possibility of using marble waste powder in cement and concrete production was
examined by studying the effects of blending of marble waste powder with cement on the physical
and chemical properties of cement paste and hardened mortar and by studying the effects of
blending of marble waste powder with cement and sand on the performance of fresh and hardened
For studying the properties of marble waste powder blended cements, a total of nine marble waste
powder blended cements, with two different blain fineness of marble waste powder, were prepared
by blending the marble waste powder with cement in replacement ranges from 5% to 20% with 5%
increment by weight of cement.
In studying the performance of concretes, a total of eighteen concrete mixes were prepared with
cement and sand blended with marble waste powder in separate mixes with replacement ranges
from 5% to 20% with 5% increment by weight of cement and sand respectively. For each
replacement range, two classes of concrete, C-25 and C-50, mixes were prepared for both cement
and sand replacement cases.
Different test results together with literature review were used to analyze the effects of using
marble waste powder in cement and concrete production.
The investigation of this thesis, therefore, has revealed that compressive strengths of cement pastes
from 5% marble waste powder blended Portland cement are comparable with that of cement pastes
from 100% Ordinary Portland cement.
For 10 and 15% replacement ranges, though reduction in compressive strength is observed, blended
cements at these percents satisfy the standard compressive strength limits for high early strength of
class of 42.5 MPa as per the EN 197-1 standard.
School of Graduate Studies-AAU
Using Marble Waste Powder in Cement and Concrete Production
MSc Thesis by Abrar Awol
Observation on the test results also indicate that the effects of blending marble waste on the
properties of cement such as consistency, setting times, insoluble residue, and soundness remain
within the acceptable ranges of different standards.
The investigation also indicates that replacement of cement by marble waste powder at 5% range,
in concrete production, results in comparable compressive strength as of concrete specimens
without marble waste powder with slight slump reduction for both C-25 and C-50 classes.
Increment of replacement ranges beyond 5%, in concrete production, results in reduction of
compressive strength and slump.
Replacement of sand by marble waste powder from 5-20% ranges, in concrete production, results
in similar and mostly enhanced performance than the control concrete specimens; with similar
compressive strength to the control specimens, with slump improvement and water permeability
depth reduction than the control specimens in both C-25 and C-50 classes.|
|Appears in:||Thesis - Constructional Technology & Management|
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