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ACI 211.4R 08:2008 Edition

ACI 211.4R 08:2008 Edition

$32.77

211.4R-08: Guide for Selecting Proportions for High-Strength Concrete Using Portland Cmt & Other Cementitious Material

Published By Publication Date Number of Pages
ACI 2008 29
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This guide presents general methods for selecting mixture proportions forhigh-strength concrete and optimizing these mixture proportions on thebasis of trial batches. The methods are limited to high-strength concrete containing portland cement and fly ash, silica fume, or slag cement(formerly referenced as ground-granulated blast-furnace slag) andproduced using conventional materials and production techniques.Recommendations and tables are based on current practice and infor-mation provided by contractors, concrete suppliers, and engineers whohave been involved in projects dealing with high-strength concrete. Keywords: aggregate; fly ash; high-range water-reducing admixture; high-strength concrete; mixture proportion; quality control.

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PDF Pages PDF Title
3 CONTENTS
4 CHAPTER 1— INTRODUCTION AND SCOPE
1.1— Introduction
1.2—Scope
CHAPTER 2— NOTATION AND DEFINITIONS
2.1—Notation
2.2—Definitions
CHAPTER 3— PERFORMANCE REQUIREMENTS
3.1— Test age
5 3.2—Required average compressive strength
3.2.1 Proportioning based on field experience
3.2.2 Proportioning based on trial batches
3.3—Other requirements
CHAPTER 4— CONCRETE MATERIALS
4.1— Introduction
4.2—Portland cement
4.3—Fly ash
6 4.4—Silica fume
7 4.5—Slag cement
4.6—Combinations of other cementitious materials
8 4.7—Mixing water
4.8—Coarse aggregate
4.9—Fine aggregate
4.10—Chemical admixtures
CHAPTER 5— HIGH-STRENGTH CONCRETE MIXTURE PROPERTIES
5.1— Introduction
9 5.2—Water-cementitious material ratio
5.3—Workability
5.3.1 Slump
CHAPTER 6— HIGH-STRENGTH CONCRETE MIXTURE PROPORTIONING USING FLY ASH
6.1— Fundamental relationship
6.1.1 Materials selection
6.1.2 Special consideration
6.2—Concrete mixture proportioning
6.2.1 Purpose
6.2.2 Introduction
6.2.3 Mixture proportioning procedure
6.2.3.1 Step 1: Select slump and required concretestrength
10 6.2.3.2 Step 2: Select maximum size of aggregate
6.2.3.3 Step 3: Select optimum coarse aggregate content
6.2.3.4 Step 4: Estimate mixing water and air content
6.2.3.5 Step 5: Select w/cm
11 6.2.3.6 Step 6: Calculate content of cementitiousmaterial
6.2.3.7 Step 7: Proportion basic mixture with no othercementitious material
6.2.3.8 Step 8: Proportion companion mixtures using flyash
12 6.2.3.9 Step 9: Trial mixtures
6.2.3.10 Step l0: Adjust trial mixture proportions
6.2.3.11 Step 11: Select optimum mixture proportions
6.3—Sample calculations
6.3.1 Introduction
6.3.2 Example
6.3.2.1 Step 1: Select slump and required concrete strength
6.3.2.2 Step 2: Select maximum size of aggregate
6.3.2.3 Step 3: Select optimum coarse aggregate content
13 6.3.2.4 Step 4: Estimate mixing water and air contents
6.3.2.5 Step 5: Select w/cm
6.3.2.6 Step 6: Calculate content of cementitious material
6.3.2.7 Step 7: Proportion basic mixture with cement only
6.3.2.8 Step 9: Proportion companion mixtures usingcement and fly ash
14 6.3.2.9 Step 9: Trial mixtures
6.3.2.10 Step 10: Adjust trial mixture proportions
6.3.2.10.1 Basic mixture
15 6.3.2.10.2 Companion mixture No. 4
16 6.3.2.10.3 Summary of trial mixture performance
6.3.2.11 Step 11: Select optimum mixture proportions
CHAPTER 7— HIGH-STRENGTH CONCRETE MIXTURE PROPORTIONING USING SILICA FUME
7.1— Fundamental relationships
7.1.1 Cement and silica fume
17 7.1.1.1 Chemical admixtures
7.1.1.2 Water demand
7.1.1.3 Aggregate
7.1.1.4 Workability and slump
7.1.2 Special considerations
7.2—Concrete mixture proportioning
7.2.1 Purpose
7.2.2 Introduction
18 7.2.3 Mixture proportioning procedure
7.2.3.1 Proportioning
7.2.3.1.1 Step 1: Determine project requirements
7.2.3.1.2 Step 2: Coordinate with the contractor who will be placing the concrete
7.2.3.1.3 Step 3: Select starting mixture
7.2.3.1.4 Step 4: Determine the volume of entrained air required
7.2.3.1.5 Step 5: Incorporate local aggregates into the original trial mixture
7.2.3.1.6 Step 6: Prepare laboratory trial mixtures
19 7.2.3.1.7 Step 7: Conduct full-scale testing
7.3—Sample calculations
7.3.1 Introduction
7.3.2 Examples
7.3.2.1 Step 1: Determine project requirements
7.3.2.2 Step 2: Coordinate with contractor
7.3.2.3 Step 3: Select a starting mixture
7.3.2.4 Step 4: Determine volume of air required
7.3.2.5 Step 5: Incorporate local aggregates
7.3.2.6 Step 6: Prepare laboratory trial mixtures
20 7.3.2.7 Step 7: Conduct full-scale testing
CHAPTER 8— HIGH-STRENGTH CONCRETE MIXTURE PROPORTIONING USING SLAG CEMENT
8.1— Fundamental relationships
8.1.1 Selection of materials
8.1.1.1 Portland cement
8.1.1.2 Chemical admixtures
8.1.1.3 Coarse aggregates
8.1.1.4 Slag cement
8.1.1.4.1 Slag activity index of slag cement
21 8.1.1.4.2 Density and handling of slag cement
8.1.2 Special considerations
8.2—Concrete mixture proportioning
8.2.1 Purpose
8.2.2 Introduction
8.2.2.1 Selecting initial slag cement grade and proportions
22 8.2.2.2 Development of relative compressive strength: slag cement content curve
8.2.3 Mixture proportioning methods
8.2.3.1 Method A
8.2.3.1.1 Step 1
8.2.3.1.2 Step 2
8.2.3.1.3 Step 3
8.2.3.1.4 Step 4
8.2.3.1.5 Step 5
23 8.2.3.1.6 Step 6
8.2.3.1.7 Step 7
8.2.3.1.8 Step 8
8.2.3.1.9 Step 9
8.2.3.1.10 Step 10
8.2.3.1.11 Step 11
8.2.3.2 Method B
8.2.3.2.1 Steps 1 through 5
8.2.3.2.2 Step 6
8.2.3.2.3 Step 7
8.2.3.2.4 Steps 8 through 11
8.3—Sample calculations
8.3.1 Introduction
8.3.2 Examples
8.3.2.1 Example 1, Method A
8.3.2.1.1 Step 1
8.3.2.1.2 Step 2
8.3.2.1.3 Step 3
8.3.2.1.4 Step 4
8.3.2.1.5 Step 5
8.3.2.1.6 Step 6
24 8.3.2.1.7 Step 7
8.3.2.1.8 Step 8
8.3.2.1.9 Step 9
8.3.2.1.10 Step 10
8.3.2.1.11 Step 11
8.3.2.2 Example 1, Method B
8.3.2.2.1 Step 1
8.3.2.2.2 Step 2
8.3.2.2.3 Step 3
8.3.2.2.4 Step 4
8.3.2.2.5 Step 5
25 8.3.2.2.6 Step 6
8.3.2.2.7 Step 7
8.3.2.2.8 Step 8
8.3.2.2.9 Step 9
8.3.2.2.10 Step 10
8.3.2.3 Example 2, Method B
8.3.2.3.1 Step 1
8.3.2.3.2 Step 2
8.3.2.3.3 Step 3
8.3.2.3.4 Step 4
8.3.2.3.5 Step 5
8.3.2.3.6 Step 6
26 8.3.2.3.7 Step 7
8.3.2.3.8 Step 8
CHAPTER 9— REFERENCES
9.1— Referenced standards and reports
27 9.2—Cited references

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