Art. 1021.06 Concrete Curing Materials
1021.06 Rheology-Controlling Admixture. The rheology-controlling admixture
shall be capable of producing a concrete mixture with a lower yield stress that will consolidate easier for slipform applications used by the Contractor. The rheology- controlling admixture shall be according to ASTM C 494, Type S (specific performance).
1021.07 Corrosion Inhibitor. The corrosion inhibitor shall be according to one
of the following.
a.Calcium Nitrite. The corrosion inhibitor shall contain a minimum 30 percent calcium nitrite by weight (mass) of solution, and shall comply with either the requirements of AASHTO M 194, Type C (accelerating) or the requirements of ASTM C 1582. The corrosion inhibiting performance requirements of ASTM C 1582 shall not apply.
b.Other Materials. The corrosion inhibitor shall be according to ASTM C 1582. SECTION 1022. CONCRETE CURING MATERIALS
1022.01 Membrane Curing Compounds. Membrane curing compounds shall
be according to ASTM C 309 and the following. The manufacturer shall provide the membrane curing compound manufacturing range for specific gravity and non-volatile content. The material will be sampled at the manufacturer’s plant by an authorized representative of the Department. The Engineer will test the sampled material and no material shall be used until it has been approved. Each container shall be legibly marked with the name of the manufacturer, the type (IDOT designation) or type/class (ASTM designation), the manufacturer’s batch or lot number, date of manufacture, and the Department’s test identification number. Approved material shall not be used after nine months from the date of manufacture, unless sampled and tested for re-approval by the Engineer. Material more than 18 months old from the date of manufacture shall not be used. Based on information provided in the safety data sheet, the Engineer reserves the right to reject the material due to health or safety concerns. Specimens used for determining moisture loss will be made and tested according to Illinois Modified AASHTO T 155. The membrane curing compound types shall be as follows.
a.Type I. This material shall be according to ASTM C 309, Type I, Class A. It shall be clear or translucent, without dye, and there are no restrictions on dissolved solids. Concrete Curing Materials Art. 1022.03
b.Type II. This material shall be according to ASTM C 309, Type I-D, Class B. It shall be clear or translucent, with fugitive dye, and it shall not contain materials which may prevent bonding of hot-mix asphalt to concrete surfaces.
c.Type III. This material shall be according to ASTM C 309, Type 2, Class A. It shall be white pigmented and there are no restrictions on dissolved solids.
d.Linseed Oil Emulsion. This material, which performs as a curing compound and sealer, shall be a blend of boiled linseed oil and high viscosity, heavy bodied linseed oil, emulsified in a water solution. The oil phase shall be 50 ± 4 percent by volume and shall consist of boiled linseed oil according to ASTM D 260. The water phase shall be 50 ± 4 percent by volume. The Engineer will verify the oil and water phases according to the ITP “Linseed Oil Based Emulsion Curing Compound”. The emulsion shall also meet the requirements of a Type I curing compound as described in (a) above, except the drying time requirement will be waived.
1022.02 Burlap Curing Blankets and Cotton Mats. These materials shall be
according to AASHTO M 182 and shall be free from substances which may be deleterious to freshly placed concrete. Burlap shall meet the requirements for Class 3. Blankets and mats shall be in a condition satisfactory to the Engineer. Any tears or holes shall be repaired.
1022.03 Waterproof Paper Blankets, White Polyethylene Sheeting, Burlap-
Polyethylene Blankets, Cellulose Polyethylene Blankets, and Synthetic Fiber with Polymer Polyethylene Blankets. These materials shall be white and according to ASTM C 171. The cellulose polyethylene blanket shall consist of a perforated white polyethylene sheeting with cellulose fiber backing and shall be limited to single use only. The cellulose polyethylene blankets shall be delivered to the jobsite unused and in the manufacturer's unopened packaging until ready for installation. Each roll shall be clearly labeled on the product with product name, manufacturer, and manufacturer’s certification of compliance with ASTM C 171. The synthetic fiber with polymer polyethylene blanket shall consist of a perforated white polyethylene sheeting with absorbent synthetic fibers and super absorbent polymer backing, and shall be limited to single use only. The synthetic fiber with polymer polyethylene blankets shall be delivered to the jobsite unused and in the manufacturer’s unopened packaging until ready for installation. Each roll shall be clearly labeled on the product with product name, manufacturer, and manufacturer’s certification of compliance with ASTM C 171. Blankets and sheeting shall be in a condition satisfactory to the Engineer. Any tears or holes shall be repaired. Art. 1023.01 Protective Coat SECTION 1023. PROTECTIVE COAT
1023.01 Requirements. Protective coat shall meet the requirements of
AASHTO M 233 (boiled linseed oil), except the protective coat shall have a nonvolatile range of 53 to 57 percent and the petroleum spirits used in the production of the protective coat shall be Type I meeting the requirements of ASTM D 235 with a maximum copper corrosion rating of 2. SECTION 1024. GROUT AND NONSHRINK GROUT
1024.01 Requirements for Grout. The grout shall be proportioned by dry
volume, thoroughly mixed, and shall have a minimum temperature of 50 °F (10 °C). Water shall not exceed the minimum needed for placement and finishing. Materials for the grout shall be according to the following. Item Article/Section
a.Cement ................................................................................................... 1001
b.Water ...................................................................................................... 1002
c.Fine Aggregate .................................................................................. 1003.02
d.Fly Ash ................................................................................ 1010.01, 1010.02
e.Concrete Admixtures .............................................................................. 1021
1024.02 Requirements for Nonshrink Grout. The prepackaged product shall
be mixed and placed according to the manufacturer’s instructions, except the addition of aggregate to the prepackaged product will not be permitted. Water shall not exceed the minimum needed for placement and finishing. Item Article/Section
a.Nonshrink Grout (Note 1)
b.Water ...................................................................................................... 1002 Note 1. Nonshrink grout shall be according to Illinois Modified ASTM C 1107. The nonshrink grout shall have a water soluble chloride ion content of less than 0.40 lb/cu yd (0.24 kg/cu m). The test shall be performed according to ASTM C 1218, and the grout shall have an age of 28 to 42 days at the time of test. The ASTM C 1218 test shall be performed by an independent lab a minimum of once every two years, and the test results shall be provided to the Department. Mixing of the nonshrink grout shall be according to the manufacturer’s specifications. The Department will maintain a qualified product list. SECTION 1025. EPOXY CONCRETE MATERIALS
1025.01 Epoxy Bonding Compound. The epoxy bonding compound shall be
according to ASTM C 881, Type IV, Grade 1, Class A, B, or C. The class supplied shall be governed by the range of temperature for which the material is to be used.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 881–883 of 1,217. View official source ↗