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Recent questions tagged concrete-mix-design
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GATE2020-CE-1-8
During the process of hydration of cement, due to increase in Dicalcium Silicate $(C_2S)$ content in cement clinker, the heat of hydration increases decreases initially decreases and then increases does not change
During the process of hydration of cement, due to increase in Dicalcium Silicate $(C_2S)$ content in cement clinker, the heat of hydrationincreasesdecreasesinitially decr...
go_editor
5.3k
points
go_editor
asked
Feb 27, 2020
Construction Materials and Management
gate2020-ce-1
concrete-mix-design
cement-properties
clinker
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0
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0
answers
2
GATE2020 CE-2-8
As per $IS\:456:2000$, the $pH$ value of water for concrete mix shall NOT be less than $4.5$ $5.0$ $5.5$ $6.0$
As per $IS\:456:2000$, the $pH$ value of water for concrete mix shall NOT be less than$4.5$$5.0$$5.5$$6.0$
go_editor
5.3k
points
go_editor
asked
Feb 13, 2020
Construction Materials and Management
gate2020-ce-2
construction-materials-and-management
concrete-mix-design
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–
0
votes
0
answers
3
GATE2017 CE-2-15
Let the characteristic strength be defined as that value, below which not more than $50 \%$ of the results are expected to fall. Assuming a standard deviation of $4$ MPa, the target mean strength (in MPa) to be considered in the mix design of a $M25$ concrete would be $18.42$ $21.00$ $25.00$ $31.58$
Let the characteristic strength be defined as that value, below which not more than $50 \%$ of the results are expected to fall. Assuming a standard deviation of $4$ MPa,...
gatecse
4.0k
points
gatecse
asked
Aug 7, 2019
Construction Materials and Management
gate2017-ce-2
construction-materials-and-management
structural-engineering
concrete-mix-design
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0
votes
0
answers
4
GATE2019 CE-2: 21
The characteristic compressive strength of concrete required in a project is $25 \: MPa$ and the standard deviation in the observed compressive strength expected at site is $4 \: MPa$. The average compressive strength of cubes tested at different water-cement (w/c) ... The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is ______
The characteristic compressive strength of concrete required in a project is $25 \: MPa$ and the standard deviation in the observed compressive strength expected at site ...
Arjun
13.0k
points
Arjun
asked
Feb 12, 2019
Construction Materials and Management
gate2019-ce-2
numerical-answers
construction-materials-and-management
structural-engineering
concrete-mix-design
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0
votes
0
answers
5
GATE2014-2-9
The target mean strength $f_{cm}$ for concrete mix design obtained from the characteristic strength $f_{ck}$ and standard deviation $\sigma$, as defined in $IS:456-2000$, is $f_{ck}+1.35 \sigma$ $f_{ck}+1.45 \sigma$ $f_{ck}+1.55 \sigma$ $f_{ck}+1.65 \sigma$
The target mean strength $f_{cm}$ for concrete mix design obtained from the characteristic strength $f_{ck}$ and standard deviation $\sigma$, as defined in $IS:456-2000$,...
Milicevic3306
11.9k
points
Milicevic3306
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Mar 25, 2018
Construction Materials and Management
gate2014-ce-2
construction-materials-and-management
structural-engineering
concrete-mix-design
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