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Chap18 - HOME PAGE CHAPTER 18 Special Types of Concrete...

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Special types of concrete are those with out-of-the-ordi- nary properties or those produced by unusual techniques. Concrete is by definition a composite material consisting essentially of a binding medium and aggregate particles, and it can take many forms. Table 18-1 lists many special types of concrete made with portland cement and some made with binders other than portland cement. In many cases the terminology of the listing describes the use, property, or condition of the concrete. Brand names are not given. Some of the more common concretes are dis- cussed in this chapter. STRUCTURAL LIGHTWEIGHT CONCRETE Structural lightweight concrete is similar to normal- weight concrete except that it has a lower density. It is made with lightweight aggregates (all-lightweight con- crete) or with a combination of lightweight and normal- weight aggregates. The term “sand lightweight” refers to lightweight concrete made with coarse lightweight aggregate and natural sand. Structural lightweight concrete has an air-dry density in the range of 1350 to 1850 kg/m 3 (85 to 115 pcf) and a CHAPTER 18 Special Types of Concrete Table 18-1. Some Special Types of Concrete Special types of concrete made with portland cement Architectural concrete Heavyweight concrete Recycled concrete Autoclaved cellular concrete High-early-strength concrete Roller-compacted concrete Centrifugally cast concrete High-performance concrete Sawdust concrete Colloidal concrete High-strength concrete Self-compacting concrete Colored concrete Insulating concrete Shielding concrete Controlled-density fill Latex-modified concrete Shotcrete Cyclopean (rubble) concrete Low-density concrete Shrinkage-compensating concrete Dry-packed concrete Mass concrete Silica-fume concrete Epoxy-modified concrete Moderate-strength lightweight concrete Soil-cement Exposed-aggregate concrete Nailable concrete Stamped concrete Ferrocement No-slump concrete Structural lightweight concrete Fiber concrete Polymer-modified concrete Superplasticized concrete Fill concrete Pervious (porous) concrete Terrazzo Flowable fill Pozzolan concrete Tremie concrete Flowing concrete Precast concrete Vacuum-treated concrete Fly-ash concrete Prepacked concrete Vermiculite concrete Gap-graded concrete Preplaced aggregate concrete White concrete Geopolymer concrete Reactive-powder concrete Zero-slump concrete Special types of concrete not using portland cement Acrylic concrete Furan concrete Polyester concrete Aluminum phosphate concrete Gypsum concrete Polymer concrete Asphalt concrete Latex concrete Potassium silicate concrete Calcium aluminate concrete Magnesium phosphate concrete Sodium silicate concrete Epoxy concrete Methyl methacrylate (MMA) concrete Sulfur concrete Most of the definitions of these types of concrete appear in Cement and Concrete Terminology, ACI 116 .
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