Question
In: Civil Engineering
A concrete for a weave breaker is to be designed at a w/c ratio of 0.45....
A concrete for a weave breaker is to be designed at a w/c ratio of 0.45. A maximum size of aggregate of 25 mm was used hence a water content of 200 kg/m3 (with 2% air) was required to achieve satisfactory workability. Both the coarse and fine aggregate conform to the grading requirements of ASTM C33. The fine aggregate having a fineness modulus of 2.4, and an absorption of 2%, a BSG (SSD) of 2.6, whereas the coarse aggregate have a bulk density of 1500 kg/m3; an absorption of 3% and a BSG (SSD) of 2.50. The moisture content for both aggregate is 2%. Compute mixture proportions (in kg/m^3) before and after moisture corrections following ACI procedure.
Solutions
Expert Solution
Complete mix design using ACI method for the given specifications is shown below.
Mix proportion for given specifications before and after moisture correction is given at the end.
Ally Wells answered 11 months agoRelated Solutions
A concrete for a weave breaker is to be designed at a w/c ratio of 0.45....
A concrete for a weave breaker is to be designed at a w/c ratio
of 0.45.
A maximum size of aggregate of 25 mm was used hence a water content
of 200 kg/m3 (with 2% air) was required to achieve satisfactory
workability.
Both the coarse and fine aggregate conform to the grading
requirements of ASTM C33.
The fine aggregate having a fineness modulus of 2.4, and an
absorption of 2%, a BSG (SSD) of 2.6, whereas the coarse aggregate
have...
A concrete for a weave breaker is to be designed at a w/c ratio of 0.45....
A concrete for a weave breaker is to be designed at a w/c
ratio of 0.45. A maximum size of aggregate of 25 mm was used hence
a water content of 200 kg/m3 (with 2% air) was required to achieve
satisfactory workability. Both the coarse and fine aggregate
conform to the grading requirements of ASTM C33. The fine aggregate
having a fineness modulus of 2.4, and an absorption of 2%, a BSG
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using a maximum aggregate size of 19 mm. The company had no history
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freezing and thawing is dominant. A specified compressive strength
of 25 MPa is required at the age of 28 days, and the size of the
section and reinforcement dictate using a maximum aggregate size of
19 mm. The company had no history of testing concrete used. The
coarse aggregate meets the ASTM grading requirements. It has
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at seashore where frequent mild freezing and thawing is dominant. A
specified compressive strength of 25 MPa is required at the age of
28 days, and the size of the section and reinforcement dictate
using a maximum aggregate size of 19 mm. The company had no history
of testing concrete used. The coarse aggregate meets the ASTM
grading requirements. It has absorption of 2%, a BSG (D) of 2.70
and...
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