Lime Art. 1012.02
1010.04 High-Reactivity Metakaolin (HRM). High-reactivity metakaolin
(HRM) is a reactive aluminosilicate pozzolan formed by calcining purified kaolinate at a specific temperature range. The HRM used in portland cement concrete shall be according to AASHTO M 321, except the fineness shall be a maximum 15 percent retained on the No. 325 (45 µm) sieve. The HRM shall be supplied in a dry, undensified form.
1010.05 Ground Granulated Blast-Furnace (GGBF) Slag. Ground
granulated blast-furnace (GGBF) slag shall consist of the glassy granular material formed when molten blast-furnace slag is rapidly chilled and then finely ground. The GGBF slag used in portland cement concrete shall be according to AASHTO M 302, for Grade 100 or Grade 120 material. SECTION 1011. MINERAL FILLER
1011.01 Description. Mineral filler shall consist of dry limestone dust, fly ash,
cement kiln dust, or lime kiln dust; and shall be according to the following.
a.Gradation. The gradation shall be according to the following. Sieve Percent Passing No. 30 (600 µm) 100 No. 100 (150 µm) 92±8 No. 200 (75 µm) 82±18
b.Loss on Ignition. The loss on ignition for all products shall be a maximum of five percent when tested according to the ITP, "Loss on Ignition for Mineral Filler".
c.Additional requirements for SMA. Mineral filler for use in SMA shall be free from organic impurities and have a Plasticity Index 4. SECTION 1012. LIME
1012.01 Hydrated Lime. Hydrated lime shall be according to ASTM C 207.
When used in soil modification, lime stabilized soil mixture, and hot-mix asphalt (HMA), the hydrated lime shall be according to ASTM C 207, Type N.
1012.02 By-Product, Hydrated Lime for Soil Modification. By-product,
hydrated lime (hydrator tailings) shall be according to the following. Art. 1012.02 Lime ASTM C 25 Parameter Value Total calcium and magnesium oxides (nonvolatile basis) 90 % min. Available calcium hydroxide (rapid sugar test, ASTM C 25) plus total MgO content calculated to be equivalent Ca(OH)2 70 % min. As-received loss on ignition (carbon dioxide plus moisture, combined and free) 5 % max. Free moisture (as-received basis) 4 % max. SO3 10 % max. Illinois Modified AASHTO T 27 Sieve Maximum Percent Retained No. 4 (4.75 mm) 0 No. 30 (600 µm) 10 No. 100 (150 µm) 60
1012.03 By-Product, Non-Hydrated Lime for Soil Modification and Soil
Stabilization. By-product, non-hydrated lime (lime kiln dust) shall be according to the following. ASTM C 25 Parameter Value Total calcium and magnesium oxides (nonvolatile basis) 60 % min. Available calcium hydroxide (rapid sugar test, ASTM C 25) plus total MgO content calculated to be equivalent Ca (OH)2 30 % min. As-received loss on ignition (carbon dioxide plus moisture, combined and free) 40 % max. Free moisture (as-received basis) 4 % max. SO3 10 % max. Illinois Modified AASHTO T 27 Sieve Maximum Percent Retained No. 4 (4.75 mm) 5 No. 30 (600 µm) 10 No. 100 (150 µm) 30
1012.04 Lime Slurry for Soil Modification and Soil Stabilization. The lime
used in the slurry shall be either hydrated lime according to the requirements of ASTM C 207, Type N, or quicklime according to the requirements for calcium lime as stated in ASTM C 5. The quantity of lime (hydrated lime or quicklime) in the slurry shall be a minimum of 35 percent and a maximum of 45 percent by total weight (mass) of slurry.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 832–833 of 1,217. View official source ↗