Concrete inFocus - Spring 2017 - 25

All the buildings in this photo are built using ICFs. Photo courtesy of Fox Blocks®.

Performance Characteristics of ICF
Concrete (Codes and Compliance)
ICF walls are best suited for bearing wall type construction. If the
architectural style for the building is to have floor-to-ceiling glass
with large cantilevered balconies, then traditional concrete flat-plate
construction is the best option. However, if the building is a typical
apartment building, hotel, dormitory or assisted living facility with a
significant solid exterior wall with punched window openings, then
ICFs are the ideal solution. Generally, these types of buildings have
a rectangular floor plate with the elevator in the center. Longitudinal
corridors service living units on either side. Each unit has a solid wall
on the exterior and at the corridor making them ideal to function as
structural bearing walls.
Furthermore, since multifamily construction requires fire barriers between dwelling units, ICF walls create a superb demising
wall. Besides providing superior protection from spreading fire (2
to 4 hours), ICFs also have excellent noise attenuation properties.
Whether designing an apartment complex or hotel, fire safety and
noise reduction are always a concern. Energy efficiency is also a major
concern for apartment owners and hotel operators. ICF concrete
buildings benefit from the lower energy bills resulting from the highperformance envelope.

Strength and Durability
The heart of ICF construction is reinforced concrete. Reinforced
concrete walls and floors have long been the building material of choice
for resisting structural loading from wind, earthquakes, flooding and
fire. There are many examples of concrete buildings surviving natural
disasters while surrounding buildings built with less durable materials
simply don't have the strength and durability to resist the loading.
Concrete walls and floors are designed using traditional requirements
of the ACI 318 Building Code Requirements for Structural Concrete.
The same analysis and design techniques used on traditionally formed
concrete buildings are used on ICF buildings. What makes ICF structures even stronger and more durable is the fact that the walls and

floors are tied together with overlapping reinforcing steel, creating a
monolithic structure.
These types of structures are extremely resistant to high loading
and provide significant redundancy which avoids catastrophic failure.
The solid walls act as shear walls to resist wind and earthquake loading. They also provide protection from flying debris from hurricanes
and tornadoes. Because concrete and EPS are water resistant, even
when a building is subject to flooding, the structure survives. This
property protection is vital for communities to withstand and recover
from disruptive events.

Fire Resistance
The U.S. Fire Administration reports that fire kills more Americans
than all natural disasters combined. In 2015, there were 1,345,500
fires reported in the United States. According to the National Fire
Protection Agency, these fires caused 3,280 civilian deaths, 15,700
civilian injuries and $14.3 billion in property damage. Of all the
construction materials used today, concrete is the most fire resistant.
This gives the noncombustible concrete structure important safety
advantages over traditional combustible wood frame structures. Unlike
wood, concrete cannot burn and, unlike steel, it won't soften or
bend. Concrete will only break down at temperatures of thousands
of degrees Fahrenheit, which is far hotter than the temperature of a
typical structure fire.
Fire safety is important for any building occupancy, but it's especially
critical for residential type construction where people sleep. Concrete has
long been recognized as the most fire resistant of all building materials
and there are decades of testing available to demonstrate this. However,
as with all building assemblies, they must be tested using standard fire
tests to demonstrate their fire resistant capabilities.
Most ICF manufacturers have tested their products in accordance
with standard fire testing protocol, including ANSI/UL 263 and ASTM
E119. In general, 4-inch ICF walls achieve a 2-hour fire rating, 6-inch
ICF walls achieve a 3- or 4-hour fire rating and 8-inch and thicker
ICF walls exceed a 4-hour fire rating. Generally, the assemblies tested
concrete INFOCUS

ı

25



Table of Contents for the Digital Edition of Concrete inFocus - Spring 2017

From the President’s Desk
Corporate Suite Column
Enviroscene Column
Strong and Efficient: Insulating Concrete Forms for Multifamily Residential Construction
Cut the Cost of Workers’ Compensation Insurance in the Concrete Industry
Engineering: Specifications for Concrete Construction
Predicting the Potential for Plastic Shrinkage Cracks
2017 Product Preview
Index of Advertisers
Concrete inFocus - Spring 2017 - belly1
Concrete inFocus - Spring 2017 - belly2
Concrete inFocus - Spring 2017 - cover1
Concrete inFocus - Spring 2017 - cover2
Concrete inFocus - Spring 2017 - 3
Concrete inFocus - Spring 2017 - 4
Concrete inFocus - Spring 2017 - 5
Concrete inFocus - Spring 2017 - 6
Concrete inFocus - Spring 2017 - 7
Concrete inFocus - Spring 2017 - 8
Concrete inFocus - Spring 2017 - 9
Concrete inFocus - Spring 2017 - 10
Concrete inFocus - Spring 2017 - From the President’s Desk
Concrete inFocus - Spring 2017 - 12
Concrete inFocus - Spring 2017 - Corporate Suite Column
Concrete inFocus - Spring 2017 - 14
Concrete inFocus - Spring 2017 - 15
Concrete inFocus - Spring 2017 - Enviroscene Column
Concrete inFocus - Spring 2017 - 17
Concrete inFocus - Spring 2017 - Strong and Efficient: Insulating Concrete Forms for Multifamily Residential Construction
Concrete inFocus - Spring 2017 - 19
Concrete inFocus - Spring 2017 - 20
Concrete inFocus - Spring 2017 - 21
Concrete inFocus - Spring 2017 - 22
Concrete inFocus - Spring 2017 - 23
Concrete inFocus - Spring 2017 - 24
Concrete inFocus - Spring 2017 - 25
Concrete inFocus - Spring 2017 - 26
Concrete inFocus - Spring 2017 - 27
Concrete inFocus - Spring 2017 - 28
Concrete inFocus - Spring 2017 - 29
Concrete inFocus - Spring 2017 - 30
Concrete inFocus - Spring 2017 - Cut the Cost of Workers’ Compensation Insurance in the Concrete Industry
Concrete inFocus - Spring 2017 - 32
Concrete inFocus - Spring 2017 - 33
Concrete inFocus - Spring 2017 - 34
Concrete inFocus - Spring 2017 - 35
Concrete inFocus - Spring 2017 - 36
Concrete inFocus - Spring 2017 - Engineering: Specifications for Concrete Construction
Concrete inFocus - Spring 2017 - 38
Concrete inFocus - Spring 2017 - 39
Concrete inFocus - Spring 2017 - 40
Concrete inFocus - Spring 2017 - Predicting the Potential for Plastic Shrinkage Cracks
Concrete inFocus - Spring 2017 - 42
Concrete inFocus - Spring 2017 - 43
Concrete inFocus - Spring 2017 - 44
Concrete inFocus - Spring 2017 - 45
Concrete inFocus - Spring 2017 - 2017 Product Preview
Concrete inFocus - Spring 2017 - 47
Concrete inFocus - Spring 2017 - 48
Concrete inFocus - Spring 2017 - 49
Concrete inFocus - Spring 2017 - 50
Concrete inFocus - Spring 2017 - 51
Concrete inFocus - Spring 2017 - 52
Concrete inFocus - Spring 2017 - 53
Concrete inFocus - Spring 2017 - Index of Advertisers
Concrete inFocus - Spring 2017 - cover3
Concrete inFocus - Spring 2017 - cover4
Concrete inFocus - Spring 2017 - divider1
Concrete inFocus - Spring 2017 - divider2
Concrete inFocus - Spring 2017 - 57
Concrete inFocus - Spring 2017 - 58
Concrete inFocus - Spring 2017 - 59
Concrete inFocus - Spring 2017 - 60
https://www.nxtbook.com/naylor/NRCQ/NRCQ0118
https://www.nxtbook.com/naylor/NRCQ/NRCQ0417
https://www.nxtbook.com/naylor/NRCQ/NRCQ0317
https://www.nxtbook.com/naylor/NRCQ/NRCQ0217
https://www.nxtbook.com/naylor/NRCQ/NRCQ0117
https://www.nxtbook.com/naylor/NRCQ/NRCQ0416
https://www.nxtbook.com/naylor/NRCQ/NRCQ0316
https://www.nxtbook.com/naylor/NRCQ/NRCQ0216
https://www.nxtbook.com/naylor/NRCQ/NRCQ0116
https://www.nxtbook.com/naylor/NRCQ/NRCQ0415
https://www.nxtbook.com/naylor/NRCQ/NRCQ0315
https://www.nxtbook.com/naylor/NRCQ/NRCQ0215
https://www.nxtbook.com/naylor/NRCQ/NRCQ0115
https://www.nxtbook.com/naylor/NRCQ/NRCQ0414
https://www.nxtbook.com/naylor/NRCQ/NRCQ0314
https://www.nxtbook.com/naylor/NRCQ/NRCQ0214
https://www.nxtbook.com/naylor/NRCQ/NRCQ0114
https://www.nxtbook.com/naylor/NRCQ/NRCQ0413
https://www.nxtbook.com/naylor/NRCQ/NRCQ0313
https://www.nxtbook.com/naylor/NRCQ/NRCQ0213
https://www.nxtbook.com/naylor/NRCQ/NRCQ0113
https://www.nxtbook.com/nxtbooks/naylor/NRCQ0412
https://www.nxtbook.com/nxtbooks/naylor/NRCQ0312
https://www.nxtbook.com/nxtbooks/naylor/NRCQ0212
https://www.nxtbook.com/nxtbooks/naylor/NRCQ0112
https://www.nxtbook.com/nxtbooks/naylor/NRCS0611
https://www.nxtbook.com/nxtbooks/naylor/NRCS0511
https://www.nxtbook.com/nxtbooks/naylor/NRCS0411
https://www.nxtbook.com/nxtbooks/naylor/NRCS0311
https://www.nxtbook.com/nxtbooks/naylor/NRCS0211
https://www.nxtbook.com/nxtbooks/naylor/NRCS0111
https://www.nxtbook.com/nxtbooks/naylor/NRCS0610
https://www.nxtbook.com/nxtbooks/naylor/NRCS0510
https://www.nxtbook.com/nxtbooks/naylor/NRCS0410
https://www.nxtbook.com/nxtbooks/naylor/NRCS0310
https://www.nxtbook.com/nxtbooks/naylor/NRCS0210
https://www.nxtbook.com/nxtbooks/naylor/NRCS0110
https://www.nxtbook.com/nxtbooks/naylor/NRCS0609
https://www.nxtbook.com/nxtbooks/naylor/NRCS0509
https://www.nxtbook.com/nxtbooks/naylor/NRCS0409
https://www.nxtbook.com/nxtbooks/naylor/NRCS0309
https://www.nxtbook.com/nxtbooks/naylor/NRCS0209
https://www.nxtbook.com/nxtbooks/naylor/NRCS0109
https://www.nxtbookmedia.com