211.7R-15: Guide for Proportioning Concrete Mixtures with Ground Limestone and Other Mineral Fillers

211.7R-15: Guide for Proportioning Concrete Mixtures with Ground Limestone and Other Mineral Fillers

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Description

The use of ground limestone and other mineral fillers can enhance the performance, economy, and sustainability of concrete mixtures. Modifications to the conventional proportioning method in ACI 211.1 are needed to incorporate these materials. This document describes ground limestone and other mineral fillers, including their properties, characterization, and qualification, and effects on concrete properties and sustainability. Recommendations are provided for proportioning concrete mixtures with these materials.

Keywords: dust-of-fracture; ground limestone; mineral fillers; mixture proportioning; paste volume; powder content; proportioning.

 

Document Details

Author: ACI Committee 211

Publication Year: 2015

Pages: 14.00

ISBN: 9781942727156

Categories: Mixture Proportioning

Formats: PDF, ePub, or Kindle

Table of Contents

CHAPTER 1—INTRODUCTION

CHAPTER 2—DEFINITIONS

CHAPTER 3—CONSTITUENT MATERIALS

3.1—Introduction

3.2—Ground limestone

3.3—Dust-of-fracture mineral filler

CHAPTER 4—GROUND LIMESTONE AND MINERAL FILLER CHARACTERIZATION AND QUALIFICATION

4.1—Introduction

4.2—Morphology (shape, angularity, and texture)

4.3—Mineralogy

4.4—Particle size and particle size distribution

4.5—Deleterious materials

4.6—Relative density (specific gravity)

CHAPTER 5—EFFECTS ON CONCRETE PROPERTIES

5.1—Rheology and workability

5.2—Placement and finishing characteristics

5.3—Strength

5.4—Setting time

5.5—Durability

CHAPTER 6—PROPORTIONING METHODS

6.1—Basic relationships

6.2—Modified ACI 211.1 method for ground limestone

6.3—Modified ACI 211.1 method for dust-of-fracture mineral fillers

CHAPTER 7—SAMPLE COMPUTATIONS

7.1—Wet mineral filler in manufactured sand

7.2—Dry mineral filler

7.3 – Adjustment of trial batches

CHAPTER 8—SUSTAINABILITY

8.1—Ground limestone

8.2—Dust-of-fracture mineral fillers

CHAPTER 9—REFERENCES

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