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- Aggregates for Concrete
6 1—Introduction to lightweight aggregates 6 2—Definition of lightweight-aggregate concrete 6 3—Low-density concretes and associated aggregates 6 3 1—Structural lightweight concrete and associated aggregates 6 3 2—Moderate-strength lightweight concrete and associated aggregates 6 3 3—Properties Chapter 7—Recycled aggregates, p E1-23
- topicdetail - American Concrete Institute
The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete
- What is aggregate? - American Concrete Institute
What is aggregate? A What is aggregate? A Aggregate is granular material, such as sand, gravel, crushed stone, crushed hydraulic cement concrete, or air-cooled iron blast-furnace slag, used with hydraulic cement to produce either concrete or mortar
- ASTM C33 C33M-18, Standard Specification for Concrete Aggregates.
Title: ASTM C33 C33M-18, "Standard Specification for Concrete Aggregates " Author(s): ASTM Subcommittee C09 20 on Aggregates Publication: Commentary Reference
- Alkali-Aggregate Reactivity - American Concrete Institute
5 3 Evaluating Aggregates for Potential Alkali-Aggregate Reactivity 5 3 1 Field Performance 5 3 2 Petrographic Examination 5 3 3 Laboratory Tests to Identify Alkali-Silica Reactive Aggregates 5 3 3 1 Mortar-Bar Test (ASTM C227) 5 3 3 2 Quick Chemical Test (ASTM C289) 5 3 3 3 Accelerated Mortar Bar Test (ASTM C1260)
- Aggregate classification by density - American Concrete Institute
Yes Those used to make normal-density concrete are called normal-density aggregates Those for low-density concrete (historically known as “lightweight” concrete) that have an air-dried density at 28 days usually in the range of 1440 to 1850 kg m 3 (90 to 115 lb ft 3), are called low-density aggregates
- E-1(16) Aggregates for Concrete - American Concrete Institute
CHAPTER 4—SAMPLING AGGREGATES 4 1—Variability in aggregates 4 2—Sampling CHAPTER 5—BLAST-FURNACE SLAG AND LIGHTWEIGHT AGGREGATES 5 1—Blast-furnace slag 5 2—Lightweight aggregates 5 3—Recycled aggregates CHAPTER 6—REFERENCES ERRATA INFO Any applicable errata are included with individual documents at the time of purchase
- Requirements for storing and handling aggregate
A third problem is the maintenance of uniform and stable moisture content in the aggregates as batched (ACI 304R, ACI 221R) A practical method of reducing segregation to a minimum in coarse aggregate is to separate the material into several size fractions and batch these fractions separately
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