Part 1 — General
1.1 Section Includes
A.Self-consolidating concrete.
1.2 Related Sections
A.Section 03055: Portland Cement Concrete
1.3 References
A.AASHTO M 6: Fine Aggregate for Portland Cement Concrete
B.AASHTO M 80: Coarse Aggregate for Portland Cement Concrete
C.AASHTO T 347: Slump Flow of Self-Consolidating Concrete (SCC)
D.AASHTO T 345: Passing Ability of Self-Consolidating Concrete (SCC) by J-Ring
E.AASHTO T 351: Visual Stability Index (VSI) of Self-Consolidating Concrete (SCC)
F.ASTM C 494: Chemical Admixtures for Concrete
G.ASTM C 1602: Mixing Water Used in the Production of Hydraulic Cement Concrete
H.ASTM C 1610: Static Segregation of Self-Consolidating Concrete Using Column Technique
I.ASTM C 1712: Rapid Assessment of Static Segregation Resistance of Self-Consolidating Concrete Using Penetration Test
J.American Concrete Institute (ACI) Standards
K.UDOT Materials Manual of Instruction
L.UDOT Minimum Sampling and Testing Requirements
M.UDOT Quality Management Plans
1.4 Definitions
A.Self-Consolidating Concrete (SCC) – A highly flowable non-segregating concrete mix that spreads into place, and is able to flow and fill all corners of the formwork, even in the presence of congested reinforcement by means of its own mass with no mechanical vibration.
Part 2 — Products
2.1 Concrete Classes and Mix Requirements
A.Refer to Section 03055, except as modified in this Section.
B.Slump Flow – 20 to 30 inches. Refer to AASHTO T 347.
C.Rapid Assessment of Static Segregation less than or equal to 15 mm. Refer to ASTM C 1712.
D.Static Segregation – less than 10 percent. Refer to ASTM C 1610.
E.Passing Ability of Self-Consolidating Concrete (SCC) by J-Ring Refer to AASHTO T 345
F.Do not exceed water/cementitious ratio of 0.40.
2.2 Materials
A.General
1.Refer to Section 03055, except as modified in this Section.
B.Aggregate
1.Use Coarse Aggregate according to AASHTO M 80 physical properties and the combined aggregate gradation requirements of Table 1.
a.Do not exceed percentages of deleterious substances as shown in AASHTO M 80, Table 2, for Class A aggregates.
2.Use Fine Aggregate according to AASHTO M 6 physical properties and the combined aggregate gradation requirements of Table 1.
a.Do not exceed percentages of deleterious substances according to AASHTO M 6 for class A aggregates, using class B for material finer than the No. 200 sieve. Table 1 Combined Aggregate Gradations Percent Passing by Dry Weight of Aggregate ¾ inch Operating Sieve Size ½ inch Operating Bands Bands ¾ inch 95 – 100 – ½ inch 65 – 95 95 –100 ⅜ inch 58 – 83 65 – 95 No. 4 35 – 65 50 – 80 No. 8 25 – 50 30 – 60 No. 16 15 – 35 20 – 45 No. 30 10 – 35 12 –35 No. 50 5 – 20 5 – 20 No. 100 1 – 12 2 – 12 No. 200 0–5 0–5
C.Water
1.Use potable water or water according to ASTM C 1602, including Table 2.
D.Admixtures
1.Viscosity Modifying Admixtures (VMA) according to ASTM C 494, Type S.
a.Do not exceed manufacturer’s recommendations for the use of the viscosity modifying admixture.
b.Show the amount of admixture used on batch tickets.
c.Do not allow site-added VMA
Part 3 — Execution
3.1 General
A.Refer to Section 03055
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Source: Utah Standard Specifications for Road and Bridge Construction, 2027 Edition. Pages 908–910 of 1,343. View official source ↗