817.01 Hydrated Lime.
d.Provisions shall be made to indicate to the ope rator that the required load in the hopper or container is being approached, such as a springless dial indicator or tare beam. Such device shall indicate at least the last 50 pounds {22 kg} of load.
e.After the required weight {mass} of the cement is batc hed, it shall be protected from loss in handling or in transit.
2.Only cement of the same "Type" shall be used in the construction of any structure or unit (substructure or superstructure) except as permitted in writing. All cement in any container having lumps of cement or caked cement, or cement which for any reason has become damaged or partially set, shall be rejected. Cement salvaged from discarded or used bags shall not be used. Cement shall not be used while its temperature is more than 150 °F {65 °C}.
3.The Contractor shall keep accurate records of the deliveries of cement and its use in the work including that from ready -mix plants. Copies of these records shall be furnished the Engineer at the close of each day's work or 8 hour run, in such form as he may require, showing the quantity used during the day or run at each part of the work.
b.Care and Handling .
1.The Contractor shall provide suitable means for storing and protecting the cement against dampness. Cement not for immediate use shall be stored in suitable weather proof buildings. Buildings shall be placed in approved locations. Provisions for storage shall be ample and the shipment of cement as received shall be separately stored in such a manner as to provide easy access for identificat ion and inspection of each shipment. On small structures, storage in the open may be permitted by authorization, in which case a raised platform and ample waterproof covering shall be provided. Stored cement shall meet the test requirements at any time aft er storage when a retest is ordered.
2.Cement of different types, even if tested and approved, shall be stored separately and shall not be mixed. LIME FOR ROADBED AND BASE STABILIZATION
817.01 Hydrated Lime.
Hydrated lime shall be high calcium (Type 1) and shall conform to AASHTO M 216 when tested in accordance with AASHTO T 219. Hydrated lime shall be stored and handled in water- proof containers until immediately before distribution to the road. If storage bins are used, they shall be c ompletely enclosed. Hydrated lime in bags shall be stored in weatherproof buildings with adequate protection from ground dampness.
817.02 Quicklime.
Quicklime shall meet the requirements of AASHTO M 216 after hydration in the laboratory. When quicklime is to be applied directly to the roadbed, the following additional requirements shall apply: Sieve % Passing by Weight {Mass} 3/4 inch {19.0 mm} 100 1/2 inch {12.5 mm} 30 - 80 No. 4 {4.75 mm} 0 - 10 Quicklime shall be handled and stored in waterproof containers until used. Accidental contact with water shall be avoided. SECTION 820 SELECTED MATERIALS FOR BASES
820.01 Description.
Selected materials for the purpose of these specifications shall be of the kind and general character of sand -clay, chert, clay -gravel, sand, local stone, stone screenings, etc., or combinations thereof, with or without commercial aggregate meeting the requirements noted in this Section.
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 731–730 of 934.