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Concrete Plant Works

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Concrete Plant Works

Our client: Ministry of Oil
Thi Qar Oil Company
China Petroleum Pipeline Engineering Corporation Iraq Branch & IROS Oil
services Ltd.
Location: Iraq / New Depot Thi Qar
Date of work: 2019 – 2020
CPP contracted to carry out work:
Supply of Concrete(SCC) production
Engineering Inspection of the pile
Mechanics & Logistic
Processing and material thermal bitumen for tank bases

Concrete mix design

The team of our company works with the design of concrete
more than ten years of experience in the field of mix design
(C10, C15, C20, C25, C30, C35, C40, C45, C50, C55, C60) MPA, Using high quality
raw materials.
mixes with Chemical additives in concrete mixtures used High-range water-reducing superplasticizer admixtures:

  • high workability produced is recommended for congested reinforced structures
  • Extended setting time allows effective hot-weather concreting
  • Allows quicker consolidation
  • Improves surface appearance
  • pumpable Improvement
  • Compatible with concrete containing pozzolanic materials

High-performance superplasticizer with slump retaining concrete admixture:

  • piling applications including C.F.A.
  • controlled delays the initial and the final settings of concrete mixes.
  • pumped concrete.
  • Ready-mix concrete production
  • High-performance concrete production
  • Concrete in hot and windy weather with extended workability time
  • Impermeable and dense concrete with a smooth surface
  • Production of complex and fine elements such as floor slabs, foundations, walls,
  • Beams and columns even through congested reinforcement
  • Self Compacting Concrete (SCC) production

for concrete mix design :(C15 MPa) Calculation

Regarding concrete mix of 15 N\mm2 compressive strength below are the calculations of the mixingredients according to British methods (building research establishment method)

Specified characteristic strength ( Fc) 15 N/mm2

Target Mean Strength Fm=Fc +M

Where M = Margin =K * S

K=1.64 , S = 8 N /mm2

Fm = 15 +1.64 * 8=28.12

Water/ cement + 0.55 additive super plasticizer (4 L/m3)

(1.5 %) by weight of cement) to become the slump = 15 ± 4 cm }

Water content = 110 liter / m3

Cement content = 110 / 0.55 = 200Kg

Wet unit weight of concrete = 2400 Kg / m3

Aggregate content = 2400 – 200-110 -4 = 2086 Kg /m3

Sand content = 0.43 * 2086 = 897Kg

Gravel content = 1189 Kg /m3

The quantities above are slighty adjusted to ensure getting

Comprehensive strength more than 15 N/mm2.

The final quantities are:

Cement =200 Kg / m3

Sand = 897 Kg /m3

Gravel = 1189 / m3

Water = 110 Liter / m3 (w/c = 0.55)

  • Additive material (super plasticizer) = 4 L /m3
  • These quantities were based on structured surface dry aggregate if the aggregate inside are in dry

condition the water quantity should be corrected according to the values of absorption of the actual

aggregate.

The absorption for fine aggregate =2.5 %

The absorption for coarse aggregate = 0.5%

Additional Water for Absorption 28 L

C20 MPA

for concrete mix design :(C25 MPa) Calculation

Regarding concrete mix of 25 N\mm2 compressive strength below are the calculations of the mix

ingredients according to British methods (building research establishment method)

Specified characteristic strength ( Fc) 25 N/mm2

Target Mean Strength Fm=Fc +M

Where M = Margin =K * S

K=1.64 , S = 8 N /mm2

Fm = 25 +1.64 * 8=38.12

Water/ cement + 0.5 { additive super plasticizer (3 L/m3)

(1.5 %) by weight of cement) to become the slump = 15 ± 3 cm }

Water content = 162.5 liter / m3

Cement content = 162.5 / 0.5 = 325Kg

Wet unit weight of concrete = 2400 Kg / m3

Aggregate content = 2400 – 325-162.5 -3 = 1909.5 Kg /m3

Sand content = 0.43 * 1909.5 = 821Kg

Gravel content = 1088.5 Kg /m3

The quantities above are slighty adjusted to ensure getting

Comprehensive strength more than 25 N/mm2.

The final quantities are:

Cement =325 Kg / m3

Sand = 821 Kg /m3

Gravel = 1088.5 / m

Water = 162.5 Liter / m3 (w/c = 0.5)

  • Additive material (super plasticizer) = 3 L /m3
  • These quantities were based on structured surface dry aggregate if the aggregate inside are in dry

condition the water quantity should be corrected according to the values of absorption of the actual

aggregate.

The absorption for fine aggregate =2.5 %

The absorption for coarse aggregate = 0.5%

Additional Water For Absorption 23 L

C30 MPA

for concrete mix design :(C35 MPa) Calculation

Regarding concrete mix of 35 N\mm2 compressive strength below are the calculations of the mix

ingredients according to British methods (building research establishment method)

Specified characteristic strength (Fc) 35 N/mm2

Target Mean Strength Fm=Fc +M

Where M = Margin =K * S

K=1.64 , S = 8 N /mm2

Fm = 35 +1.64 * 8=43.12

Water/ cement + 0.35 {additive super plasticizer (4 L/m3)

(1.5 %) by weight of cement) to become the slump = 15 ± 3 cm }

Water content = 160liter / m3

Cement content = 160/ 0.35 = 450 Kg

Wet unit weight of concrete = 2400 Kg / m3

Aggregate content = 2400 – 450-160-4 = 1786 Kg /m3

Sand content = 0.43 * 1786= 768 Kg

Gravel content = 1018Kg /m3

The quantities above are slighty adjusted to ensure getting

Comprehensive strength more than 35 N/mm2.

The final quantities are:

Cement =450 Kg / m3

Sand = 768 Kg /m3

Gravel = 1018 / m3

Water = 160 Liter / m3 (w/c = 0.35)

  • Additive material (super plasticizer) = 4 L /m3
  • These quantities were based on structured surface dry aggregate if the aggregate inside are in dry

condition the water quantity should be corrected according to the values of absorption of the actual

aggregate.

The absorption for fine aggregate =2.5 %

The absorption for coarse aggregate = 0.5%

Additional Water For Absorption 18 L

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