Installation Guide

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PRODUCT USE
QUIKRETE
®
Fast Setting Concrete Mix is a general purpose concrete
designed to achieve final set in 20-40 minutes. Fast Setting Concrete
Mix is suitable for setting posts and pouring slabs when a rapid return
to service is desired.
SIZES
• QUIKRETE
®
Fast Setting Concrete Mix - 50 lb (22.7 kg) bags
YIELD
• Each 50 lb (22.7 kg) bag of QUIKRETE
®
Fast Setting Concrete Mix
will yield approximately 0.375 cu ft (11 L) of mixed concrete.
• Two 50 lb (22.7 kg) bags of QUIKRETE
®
Fast Setting Concrete Mix
will set a 4” (102 mm) diameter post in a 10” (254 mm) diameter hole
2’ (0.6 m) deep.
TECHNICAL DATA
APPLICABLE STANDARDS
ASTM International
• ASTM C39 Standard Test Method for Compressive Strength of
Cylindrical Concrete Specimens
• ASTM C191 Standard Test Method for Time of Setting of Hydraulic
Cement by Vicat Needle
• ASTM C387 Standard Specification for Packaged, Dry, Combined
Materials for Mortar and Concrete
PHYSICAL/CHEMICAL PROPERTIES
Fast-Setting Concrete meets or exceeds the compressive strength
requirements of ASTM C387. When mixed to a 2" - 3" (51 - 75 mm)
slump, QUIKRETE
®
Fast-Setting Concrete will achieve the typical
physical properties shown in Table 1.
TABLE 1 TYPICAL PHYSICAL PROPERTIES
Property & test Results
Setting time, ASTM C191 20 - 40 min.
Compressive strength, ASTM C39 2 hrs 400 psi (2.8 MPa)
24 hrs 1000 psi (6.9 MPa)
7 days 2500 psi (17.2 MPa)
28 days 4000 psi (27.6 MPa)
INSTALLATION
FOR SETTING POSTS
1. Place post into hole and temporarily stand straight. The hole
diameter should be 3 times the post diameter. The depth of the post
hole should be one-half of the above ground post height.
2. Pour dry mix into the hole until it is approximately 3" - 4" (76 - 102
mm) from the top.
3. Pour water into the dry mix until the powder is saturated with water.
Depending on soil conditions, this will require about 1 gallon (3.8 L) of
water per 50 lb (22.7 kg) bag. For holes deeper than 2' 6" (0.8 m),
place the material in lifts of 2' 6" (0.8 m) or less to allow water to soak
all the way through.
4. Fill the remainder of the hole with soil dug from the hole. This
product sets in 20 - 40 minutes. Wait 4 hours before placing heavy
objects.
FOR POURING SLABS
MACHINE MIXING INSTRUCTIONS
QUIKRETE
®
Fast-Setting Concrete can be mixed in a barrel-type
concrete mixer or a mortar mixer.
• Allow at least 3/4 cu ft (20 L) of mixer capacity for each 50 lb (22.7
kg) bag to be mixed at one time
• Add approximately 4 pt (1.9 L) of fresh water to the mixer for each
bag to be mixed
• Turn on the mixer and begin adding concrete. If the material
becomes too difficult to mix, add small amounts of water at a time and
continue to work the mix until a workable consistency is obtained. Do
not add more than 5 pt (2.4 L) of water per 50 lb bag
HAND MIXING INSTRUCTIONS
• Empty bags into a suitable mixing container
• Add approximately 4 pt (1.9 L) of clean water for each 50 lb (22.7
kg) bag
• Work the mix with a shovel, rake or hoe; add water as needed until a
plastic-like consistency is achieved
• Do not add more than 5 pt (2.4 L) of water per 50 lb (22.7 kg) bag
• Be sure all material is uniformly mixed
• Do not leave standing puddles
PRODUCT DESCRIPTION
QUIKRETE
®
Fast Setting Concrete Mix is used for setting posts, sleeves and anchors, for
pouring slabs 2” (51 mm) or thicker, and for other applications where a fast-setting general
purpose concrete is desirable.
Structural Concrete
03 31 00
DIVISION 3