O'Brill Company

Construction Specialty Suppliers

       6626 N. Milwaukee Ave.

Niles, IL 60714

773-775-1122 or 847-647-0005

FAX 847-647-7819

Since 1967

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NO. 382


Provides a high-strength, cost-effective, general purpose grout for a broad range of construction projects.

SEALTIGHT CG-86 Construction-Grade Grout is a non-ferrous, non-gaseous, non-shrink, high-strength, cost-effective, general-purpose grout for a broad range of large or small construction project applications.

Technical Description
SEALTIGHT CG-86 Construction-Grade Grout is a non-ferrous, non-gaseous, non-shrink economical grout. It was specifically developed to provide a high-strength, cost-effective, general-purpose grout for use across a broad range of large and small construction projects.

CG-86 is non-gaseous and will not rust. It is furnished premixed and ready-to-use. CG-86 may be extended for deep grouting with pea gravel for greater yield and increased economy.

SEALTIGHT CG-86 is very versatile and may be used for either interior or exterior applications. CG-86 is designed for base plate grouting, anchoring, precast wall panels and bridge seats.

Advantages and Benefits

bulletFurnished premixed "ready-to-use"...just add water
bulletProvides high-strength, non-ferrous, non-shrink grout for a broad range of general construction projects
bulletOffers the strength and characteristics required for cost-effective, general-purpose grouting
bulletCost reductions are realized when extended with pea gravel for deep grouting
bulletRequires no separate bonding agent
bulletNo site batching required for consistent results

Application Tools


Concrete Mixing Pan

Mortar Mixer

Pouring Container


All grouting should be done using established procedures according to American Concrete Institute recommendations.

SURFACE PREPARATION: All grout contact surfaces must be free of oil, grease, scale, etc. Unsound concrete must be chipped out. Leave surface rough but level. Grouting area must be saturated with water 12-24 hours prior to grouting. Remove all excess water before placing grout.

POURING: Method of forming must provide for rapid, continuous grout placement. Ensure form is well sealed.

PLACEMENT: CG-86 is easily placed by pouring or pumping and compaction can be accomplished by rodding or light vibrating. Place grout on one side, flowing to opposite and adjacent sides to avoid entrapment of air. When necessary, provide vent holes. Grout "head" and excess grout may be removed after initial set.

CURING: CG-86 may be cured in accordance with ACI 308. If a membrane curing compound is used, we suggest using SEALTIGHT VOCOMP 25-1315 Curing & Sealing Compounds.

VENTING: Forming also must provide for venting to avoid air entrapment. Do not make close fitting forms, allow 1/2" (12.7mm) clearance and 1" (25.4mm) for "head".

MIXING: Small quantities of CG-86 Grout may be hand mixed in a concrete mixing pan until lump free. For large quantities and continuous pours, use a mortar mixer with rubber-tipped blades. Mix for a minimum of 5 minutes. Use minimum water required to produce desired placement consistency. Do not mix more than can be placed in 30 minutes. Do not retemper. Use only clean, potable water. Do not use as a repair mortar in unconfined patches.

Set time and strength development is dependent on temperature, therefore, follow ACI Methods during hot or cold weather grouting.

ACI 305 - "Standard on hot weather concreting"
ACI 306 - "Standard on cold weather concreting"

Cost reductions are realized when grouting large areas by adding washed, dried and graded pea gravel. For thicknesses 2" to 5", add up to 25% 3/8" pea gravel. For medium-flow mixes, 5" and over, add up to 50% 3/8" pea gravel, plastic mix. Addition of pea gravel is based on percentage of the weight of the dry grout.

50 lb. (22.7 kg) moisture resistant bags

ASTM C 1107, Grade A
Corps of Engineers Spec. CRD-C-621

0.43 ft (0.012m) per 50 lb. (22.7 kg) bag.

Normal cement storage handling practices should be observed. Grouting should be done using established concreting procedures according to ACI recommendations. Read and follow application information, precautions and Material Safety Data information.

Typical Properties
Consistency per ASTM C 827-95A Plastic Flowable
Mix Ratio per 50 lb. bag  6.25 pints 6.75 pints
Flow per ASTM C 230-90 110% 130%
Set Time per C 191-92 - Initial 6 hours 7 hours
Compressive Strength - ASTM C 109-93
At 1 day
At 3 days
At 7 days
At 28 days

3625 psi (25 MPa)
5300 psi (36.5 MPa)
5650 psi (38.9 MPa)
6650 psi (45.8 MPa)

3625 psi (25 MPa)
4400 psi (30.3 MPa)
5450 psi (37.6 MPa)
6400 psi (44.1 MPa)
All application and performance values are typical for this material.

This material last updated March, 2000.

W. R. MEADOWS, INC. warrants that, at the time and place we make shipment, our materials will be of good quality and will conform with our published specifications in force on the date of acceptance of the order. THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES OTHERWISE ARISING BY OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR OTHERWISE. As the exclusive remedy for breach of this Warranty, we will replace defective materials, provided, however, that the buyer examine the materials when received and promptly notify us in writing of any defect before the materials are used or incorporated into a structure. Three (3) months after W. R. MEADOWS, INC. has shipped the materials, all our Warranty and other duties with respect to the quality of the materials delivered shall conclusively be presumed to have been satisfied, all liability therefore terminates, and no action for breach of any such duties may thereafter be commenced. W. R. MEADOWS, INC. shall in no event be liable for consequential damages. Unless otherwise agreed to in writing, no warranty is made with respect to materials not manufactured by W. R. MEADOWS, INC. We cannot warranty or in any way guarantee any particular method of use or application of the performance of materials under any particular condition. Neither this Warranty nor our liability may be extended or amended by our salesmen, distributors or representatives, or by our distributor's representatives, or by any sales information or drawings.

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Copyright 2002 O'Brill Company
Last modified: August 09, 2004