1727 - SHOTCRETE CONCRETE 1700-41
1727.1 Description
This specification covers shotcrete concrete used to repair, reinforce or modify concrete structures.
1727.2 Requirements
a. Provide material that complies with the following: TABLE 1727-1: SHOTCRETE CONCRETE PROPERTIES Hardened Properties Test Method Requirement Slant Shear Bond Strength @ 24 hours ASTM C 882 Modified* 1200 psi, min. Drying Shrinkage @ 28 days ASTM C 157 Modified** 0.08%, max. Rapid Chloride Permeability @ 28 days ASTM C 1202*** / AASHTO T 277*** 750 coulombs, max. Volume of Permeable Voids @ 7 days ASTM C 642*** 10%, max. Freeze-Thaw Resistance @ 300 cycles ASTM C 666, Procedure A 95% RDM, min. Flexural Strength @ 24 hours ASTM C 348 650 psi, min. Compressive Strength @ 24 hours ASTM C 109 2500 psi, min. *No epoxy bonding agent used. ** ICRI Guideline No. 03733, “A Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces”, 1”x1”x10” prism, air cured ***Either Rapid Chloride Permeability or Volume of Permeable Voids can be used. b. If the mix is not in bag or tote form (pre-blended in a manufacturer’s controlled environment), then provide a mix design with weight quantities of each com ponent for a cubic yard of finished product. All components are required to be prequalified. c. Provide material with a corrosion inhibitor. d. Material may contain fibers. e. Provide material to satisfy application requirements – vertical, overhead, low-pressure spraying, or hand packed.
1727.3 Test Methods
Test as specified in subsection 1727.2a.
1727.4 Prequalification
a. Manufacturers interested in prequalifying material under subsection 1727.2a. must submit the following to the Bureau of Construction and Materials:
1.A complete description, literature, and set of instructions and recommendations,
2.A copy of test results performed in accordance with the tests stated in subsection 1727.2a.,
3.Certificate stating results comply with subsection 1727.2a., and
4.Material Safety Data Sheets (MSDS). b. The Bureau of Construction and Materials will mainta in a list of qualified materials. Products will remain on the list as long as field performance is satisfactory.
1727.5 Basis of Acceptance
Prequalification as specified in subsection 1727.4. Receipt and approval of a Type D certification as specified in DIVISION 2600. Visual inspection by the Field Engineer.
Get an email when 1727 changes
Kansas revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.
Source: Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 831–831 of 978. View official source ↗