Aci 213r-14 Pdf |work|

The is a comprehensive technical document published by the American Concrete Institute (ACI) that outlines the state of technology for lightweight-aggregate (LWA) concrete. This guide is essential for engineers, architects, and contractors who need to design, specify, or work with concrete that is significantly lighter than standard mixes without sacrificing structural integrity. Core Definition and Scope

The report, titled "Guide for Structural Lightweight-Aggregate Concrete," is a foundational document published by the American Concrete Institute (ACI). It serves as the primary reference for engineers, architects, and contractors who design and construct with structural lightweight concrete.

Defines structural lightweight concrete, typically having an air-dry density of less than 115 lb/ ft3f t cubed Performance: Reviews in-service performance.

6.1 General The construction practices used can affect the durability of concrete. aci 213r-14 pdf

This section sets the stage, outlining the purpose of the guide, which is to provide recommendations for the use of lightweight aggregate concrete in structural applications. 2. Properties of Structural Lightweight Aggregates

Engineers looking to stay compliant with local building codes should ensure they are using the version referenced by their jurisdiction's adopted IBC (International Building Code) or ACI 318 code cycle.

Mechanical Properties: The guide details how the lower modulus of elasticity in lightweight concrete affects structural design. It provides formulas for calculating tensile strength, creep, and shrinkage, which are often different from normalweight concrete due to the cellular nature of the aggregates. The is a comprehensive technical document published by

8.3 Repair Repair of concrete structures should be done in accordance with the approved repair procedures.

High pump pressures can force water into the pores of dry lightweight aggregate, causing the mix to lose slump and jam the pump line. The guide emphasizes the necessity of pre-conditioning (pre-wetting) the aggregate.

What specific are you designing? (e.g., high-rise floor slabs, bridge decks, precast panels) What is your target compressive strength and density ? It serves as the primary reference for engineers,

LWAC typically exhibits lower tensile strength than NWC. Because shear strength in concrete relies heavily on tensile capacity and aggregate interlock, a reduction factor (

Chapter 5 - Mix Design .................................................................................................................... 21 5.1 General ...................................................................................................................................... 21 5.2 Water/Cementitious Material Ratio ........................................................................................... 22 5.3 Cementitious Material Content ................................................................................................. 23 5.4 Aggregate Properties ................................................................................................................ 24

A comparative breakdown between and newer code editions

Furthermore, using an old version (like ACI 213R-03) is dangerous. The 2014 version updated critical formulas regarding bond strength and splitting tensile strength ( f_{ct} ). Specifying an obsolete version could lead to structural failure or legal liability.