ASTM C114-18 pdf free.Standard Test Methods for Chemical Analysis of Hydraulic Cement.
Summary of Tesr Methods- -These are rapid test methods for the determination of free calcium oxide in fresh clinker. When applied to cement or aged clinker, the possibility of the presence of calcium hydroxide should be kept in mind since these methods do not distinguish between free CaO and free Ca(OH)2. Two test methods are provided. Alternate Test Method A is a modifed Franke procedure in which uncombined lime is titrated with dilute perchloric acid after solution in an ethylacetoacetate isobutylalcohol solvent. Altermate Test Method B is an ammonium acetate titration of the alcoholglycerin solution of uncombined lime with Sr(NO3)2 as an accelerator.
Refluxing Assembly, consisting of a flask with flat-bottom short neck Erlenmeyer fask with 250 mL capacity. The water-cooled refluxing condenser should have a minimum length of 300 mm. The fask and reflux condenser shall be connected with standard tapered ground glass joints. The reflux condenser shall be fitted with an absorption tube containing a desiccant, such as indicating silica gel, and a material for the removal of CO2, such as Ascarite. The absorption tube shall be inserted with a rubber stopper in the upper end of the reflux column.  Bure, having a 10 mL capacity and graduated in units not more than 0.05 mL. Vacuum Filtration Assembly, consisting of a Gooch crucible size No. 3, 25 mL capacity in which is placed a suitable filter paper, 21 mm size, a Walter crucible holder, a 500 mL vacuum flask, and vacuum source. The crucible is half flled with compressed filter pulp.
Solutions Required: Ethyl Acetoacetate- -Isobutyl Alcohol Solvent- 3 parts of volume of ethyl acetoacetate and 20 parts by volume of isobutyI alcohol. Thymol Blue Indicator- Dissolve 0.1 g of thymol the side of the beaker.
Refluxing Assembly, consisting of a flask with fat-bottom short neck Erlenmeyer flask with 250 mL capacity. The water-cooled refuxing condenser should have a minimum length of 300 mm. The flask and reflux condenser shall be connected with standard tapered ground glass joints. The reflux condenser shall be ftted with an absorption tube containing a desiccant, such as indicating silica gel, and a material for the removal of CO2, such as Ascarite. The absorption tube shall be inserted with a rubber stopper in the upper end of the reflux column.ASTM C114 pdf download.