BS EN 196-3:2005 pdf free.Methods of testing cement—Determination of setting timesand soundness.
BS EN 196-3 This document specifies the methods for determining standard consistence, setting times andsoundness of cements.
The method applies to common cements and to other cements and materials, the standards for whichcall up this method. lIt may not apply to other cement types that have, for example, a very short initialsetting time.The method is used for assessing whether the setting time and soundness of a cement isin conformity with its specification.
This document describes the reference methods and allows the use of alternative procedures andequipment,as indicated in notes,provided that they have been calibrated against the referencemethods. In the event of a dispute, only the reference equipment and procedures are used.
The following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies.For undated references, the latest edition of the referenceddocument (including any amendments) applies.
EN 196-1,Methods of testing cement — Part 1 : Determination of strength.
Cement paste of standard consistence has a specified resistance to penetration by a standardplunger. The water required for such a paste is determined by trial penetrations of pastes withdifferent water contents.
The setting time is determined by observing the penetration of a needle into cement paste of standardconsistence until it reaches a specified value.
The soundness is determined by observing the volume expansion of cement paste of standardconsistence as indicated by the relative movement of two needles.The tolerances shown in Figures 1 and 2 are important for correct operation of the equipment in thetesting procedure. When regular control measurements show that the tolerances are not met,theequipment shall be rejected, adjusted or repaired.Records of control measurements shall be kept.
Acceptance measurements on new equipment shall cover mass,volume,and dimensions to theextent that these are indicated in this document paying particular attention to those critical dimensionsfor which tolerances are specified.
In those cases where the material of the equipment can influence the results, the material is specifiedand shall be used.
The approximate dimensions shown in the figures are provided as guidance to equipmentmanufacturers or operators. Dimensions which include tolerances are obligatory.BS EN 196-3 pdf download.