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April 28, 2022

Standard Practice for Design and Construction of Concrete Silos and Stacking Tubes for Storing Granular Materials (ACI 313-97) 1

Standard Practice for Design and Construction of Concrete Silos and Stacking Tubes for Storing Granular Materials (ACI 313-97)

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description ilo failures have alerted design engineers to the danger ofdesigning silos for only static pressures due to stored mate-rial at rest. Those failures have inspired wide-spreadresearch into the variations of pressures and flow of mate-rials. The research thus far has established beyond doubt thatpressures during withdrawal may be significantly higher1-4 orsignificantly lower than those […]

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Guide to Decorative Concrete 2

Guide to Decorative Concrete

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description Decorative concrete has been in existence since approxi-mately 70 AD, when concrete was used for defining affluent or important areas of living space in communal cultures. Early examples of this type of adornment are the streets and paving throughout the city of Pompeii near Naples, Italy. Early deco-rative concrete used colored aggregates and varying

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Guide for Consolidation of Concrete 3

Guide for Consolidation of Concrete

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description Freshly placed unconsolidatedconcrete contains excessiveand detrimental entrapped air. If allowed to harden in thiscondition, the concrete will be porous and poorly bonded tothe reinforcement. It will have low strength, high permeability,and poor resistance to deterioration.It mayalso have a poorappearance. The mixture should be consolidated if it is tohave the properties desired and expected of

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Guide to Identification and Control of Visible Surface Effects of Consolidation on Formed Concrete Surfaces 4

Guide to Identification and Control of Visible Surface Effects of Consolidation on Formed Concrete Surfaces

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description his guide is a reference source for specifiers, design engi-neers, architects, contractors, and other professionals who work with concrete surface finish of formed surfaces. The ability to identify or categorize negative surface effects is the first step in detecting the root cause of them. The goal of this guide is to differentiate between various

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Guide to Curing Concrete 5

Guide to Curing Concrete

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Description This guide reviews and describes the state of the art for curing concrete and provides guidance for specifying curing procedures. Curing practices, procedures, materials, and monitoring methods are described. Although the principles and practices of curing discussed in this guide are applicable to all types of concrete construction, this document does not specifically address

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Report on Internally Cured Concrete Using Prewetted Absorptive Lightweight Aggregate 6

Report on Internally Cured Concrete Using Prewetted Absorptive Lightweight Aggregate

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description Portland-cement concrete, including mixtures with supplementary cementitious materials, does not typically develop its durability, strength, and mechanical characteris-tics without adequate curing. This report on internally cured concrete (ICC) does not presume to change the require-ment for water retention at the curing-affected zone on the concrete surface. The curing methods listed in ACI 308R-01 should

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Code Requirements for Reinforced Concrete Chimneys (ACI 307-08) and Commentary 7

Code Requirements for Reinforced Concrete Chimneys (ACI 307-08) and Commentary

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Description As industry expanded in the years immediately following World War I and, as a result of the development of large pulverized coal-fired boilers for the electric power-generatingutilities in the 1920s, a number of large reinforced concrete chimneys were constructed to accommodate these new facilities. A group of interested engineers who foresaw the potential need

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Guide to Cold Weather Concreting 8

Guide to Cold Weather Concreting

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Description Cold weather exists when the air temperature has fallen to, or is expected to fall below 40°F (4°C) during the protection period. The protection period is defined as the time required to prevent concrete from being affected by exposure to cold weather. Concrete placed during cold weather will develop sufficient strength and durability to

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Guide to Hot Weather Concreting 9

Guide to Hot Weather Concreting

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Description Hot weather can create problems in mixing, placing, andcuring hydraulic-cement concrete that adversely affect theproperties and serviceability of the concrete. Most of theseproblems relate to the increased rate of cement hydration athigher temperature and increased evaporation rate of moisturefrom the freshly mixed concrete. The rate of cement hydrationdepends on ambient and concrete temperature, cementcomposition

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Guide for Measuring, Mixing, Transporting, and Placing Concrete 10

Guide for Measuring, Mixing, Transporting, and Placing Concrete

Leave a Comment / Civil Books Platform, Concrete Structures Books /

Description This guide outlines procedures for achieving good results in measuring and mixing ingredients for concrete, transporting it to the site, and placing it. The first six chapters are general and apply to all types of projects and concrete. The following four chapters deal with preplaced-aggregate concrete, underwater placing, pumping, and conveying on belts. The

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