RFB-08-57 - Supply Quick Lime

Summary of Specifications:
Quality Specifications: 

• In compliance with AWWA B 202 (latest edition), AWWA Standard for Quicklime. 

• To be manufactured by the rotary kiln process. 

• The Quicklime shall be Water Grade Small Rescreened – Hi Calcium “PEBBLE SIZE”, ranging in size from ¾” to 0”. 

Typical Properties: Chemical Average (%) Carbon Dioxide (CO) 0.87 Sulfur(S) 0.046 Available Lime (Rapid Sugar) 92.8 Calcium Oxide (CaO) 95.3 Magnesium Oxide (MgO) 2.0 Silica (SiO2) 0.640 Alumina (Al2O3) 0.336 Ferric Oxide (Fe2O3) 0.380 

Typical Properties: Physical Average (%) Residue retained on 30 mesh 2.1 Passing 8 mesh sieve 9.3 

• The Quicklime shall have not less than 80 percent available calcium oxide (CaO), and shall be substantially free from carbonate solids and siliceous residue. 

• During the contract period, the supplier must furnish results of analysis of the calcium oxide (CaO) content from at least one shipment of quicklime delivered to the County per month, the sampling and analyses to be conducted using techniques specified in AWWA B202 Section 5.1, 5.2 and 5.3