934-1 Scope.
This Section covers only prepackaged non -shrink cementitious grout for structural use.
934-2 Type Permitted.
Only non -metallic formulations of grouts are allowed. Gas producing, metal oxidizing and expansive aggregate grouts are not allowed.
934-3 Sampling and Testing Methods.
Perform concrete sampling and testing in accordance with the following methods: Making and Curing Concrete Test Specimens in the Laboratory ................................ ............... ASTM C192 Time of Setting Concrete Mixtures by Penetration Resistance ................................ ...... ASTM C403 Determining Low -Levels of Chloride in Concrete and Raw Materials ................................ ....................... FM 5-516 Compressi ve Strength of Hydraulic Cement Mortars ................................ .............................. ASTM C109 Flow of Grout for Preplaced Aggregate Concret e (Flow Cone Method) ................................ ......... ASTM C939 Measuring Changes in Heigh t of Cylindrical Specimens from Hydraulic Cement Grout ................................ . ASTM C1090 Expansion and Bleeding of Freshly Mixed Grout for Preplaced Aggregate Concrete in the Laboratory .............. ASTM C940
934-4 Requirements.
When tested as provided in 934 -3, the grout shall meet the following requirements: Table 934-1 Property Test Value Compressive strength one day 2,500 psi minimum 3 days 5,000 psi minimum Time of set, final 8 hours maximum Chloride Content 0.40lb/yd3 maximum Hardened Height Change at 1, 3, 14, and 28 Days 0.0% to 0.3% Hardened Height Change at 1, 3, and 14 Days Height Change @ 28 Days Expansion 2.0% @ 3 Hours Bleeding, Final 0.0% @ 3 Hours FY 2023-24 Return to Table of Contents
934-5 Product Acceptance on the Project.
Non-shrink grout used shall be one of the products listed on the Department’s Approved Product List (APL). Manufacturers seeking evaluation of their product shall submit an application in accordance with Section 6. Acceptance will be made in accordance wi th the products listed on the APL.
934-6 Rejection.
Materials shall be rejected at the point of use if the materials are caked, lumpy, or show any signs of deterioration. Materials shall be rejected if the grout does not achieve the design fluidity or con sistency when mixed according to the manufacturer’s recommendations. All broken or open packages shall be rejected.
934-7 Packaging.
Cementitious materials for grouts must be packaged in suitable moisture resistant containers and clearly labeled. Where a pplicable, manufacturers recommendations, limitations and cautions shall be clearly visible on each label. FY 2023-24 Return to Table of Contents SECTION 937 POST-INSTALLED ANCHOR SYSTEMS FOR STRUCTURAL APPLICATIONS IN CONCRETE ELEMENTS
937-1 General .
Post-installed anchor systems intended for structural applications in concrete elements consist of adhesive-bonded anchor systems.
937-2 Approved Product List ( APL).
Manufacturers of post -installed anchor systems may apply for inclusion of individual products on the Department’s Approved Product List (APL). The application shall be made in accordance with Section 6 and shall include certified test reports from an independent testing laboratory which shows the material system meets all the requirements of t his Section.
937-3 Certification.
The Contractor shall provide the Engineer with certification from the manufacturer of the anchor system, confirming that the requirements of this Section are met. The certification shall conform to the requirements of Sec tion 6. Each certification shall cover only one LOT of anchoring materials.
937-4 Adhesive Bonding Material Systems .
937-4.1 General: Adhesive bonding material systems for structural applications shall
consist of pre -packaged , 2-part chemical components. The material systems shall be specifically intended for use in structural applications for bonding anchors and dowels to hardened concrete. Applications are limited to anchors and dowels installed in positions ranging from vertically downward to horizontal . Do not use material from containers which are damaged or have been previously opened. Use only full packages of components. Combining of adhesive bonding components from bulk supplies is not permitted. Material systems shall be pre -packaged to automa tically proportion and mix the materials for use. Manual proportioning of the components will not be permitted.
937-4.2 Minimum Performance Requirements (FM 5-568): When tested in
accordance with FM 5-568, the adhesive bonding material system, for general use, shall meet the following requirements: Table 937-1 Uniform Bond Stress Type HV Type HSHV Confined Tension 2,290 psi 3,060 psi Damp-Hole Installation 1,680 psi 1,830 psi Elevated Temperature 2,290 psi 3,060 psi Horizontal Orientation 2,060 psi 2,060 psi Short Term Cure 1,710 psi 1,710 psi Specified Bond Strength 1,080 psi 1,830 psi Maximum Coefficient of Variation for Uniform Bond Stress : 20%. FY 2023-24 Return to Table of Contents