ДСТУ Б EN 196-3:2015
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1 2 З? 4 4.1 4.2 5 ( 5.1 5.2 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 II 1 Scope 1
2 Normative references 2
З? Principles 2
4 Laboratory, equipment and materials . 2
4.1 Laboratory 2
4.2 Equipment and materials 2
5 Standard consistence test 3
5.1 Apparatus 3
5.2 Procedure 4
6 Setting time test 7
6.1 Apparatus 7
6.2 Determination of initial setting time . 8
6.3 Determination of final setting time . 10
7 Soundness test 11
7.1 Apparatus 11
7.2 Procedure 13
7.3 Report 14
7.4 Retest 14
Annex A (informative)
Alternative method for setting time tests 15 EN 196-3:2005+ - - - -
Part 3: Determination of setting time and soundness
This document specifies the methods for determining standard consistence, setting times and soundness of cements.
The method applies to common cements and to other cements and materials, the standards for which call up this method. It may not apply to other cement types that have, for example, a very short initial setting time.
The method is used for assessing whether the setting time and soundness of a cement is in conformity with its specification.
This document describes the reference methods and allows the use of alternative procedures and equipment, as indicated in notes, provided that they have been calibrated against the reference methods. 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 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 196-1, Methods of testing cement - Part 1: Determination of strength
З? 4 4.1 4.2 4.2.1 Cement paste of standard consistence has a specified resistance to penetration by a standard plunger. The water required for such a paste is determined by trial penetrations of pastes with different water contents.
The setting time is determined by observing the penetration of a needle into cement paste of standard consistence until it reaches a specified value.
The soundness is determined by observing the volume expansion of cement paste of standard consistence as indicated by the relative movement of two needles.
4.1 Laboratory
The laboratory in which specimens are prepared and tested shall be maintained at a temperature of (20 The temperature and relative humidity of the air in the laboratory and the temperature of the water in the storage containers shall be recorded at least once per day during working hours.
Cement, water and apparatus used to make and test specimens shall be at a temperature of (20 NOTE See Annex A for storage conditions to be applied when testing setting times by alternative method
Where temperature ranges are given, the target temperature at which the controls are set shall be the middle value of the range.
4.2 Equipment and materials
4.2.1 General requirements
The tolerances shown in Figures 1 and 2 are important for correct operation of the equipment in the testing procedure. When regular control measurements show that the tolerances are not met, the equipment shall be rejected, adjusted or repaired.
4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 5 5.1 Records of control measurements shall be kept.
Acceptance measurements on new equipment shall cover mass, volume, and dimensions to the extent that these are indicated in this document paying particular attention to those critical dimensions for which tolerances are specified.
In those cases where the material of the equipment can influence the results, the material is specified and shall be used.
The approximate dimensions shown in the figures are provided as guidance to equipment manufacturers or operators. Dimensions which include tolerances are obligatory.
4.2.2 Balance, capable of weighing to an accuracy of 4.2.3 Graduated cylinder or burette, capable of dispensing to an accuracy of 4.2.4 Mixer, conforming to EN 196-1.
NOTE A more homogeneous paste is produced at the lower limit of tolerance for the clearance between the blade and the bowl.
4.2.5 Water, distilled or deionized water shall be used for making the specimens. Drinking water may be used for storing and boiling specimens.
4.2.6 Timer, capable of measuring to an accuracy of 4.2.7 Ruler, capable of measuring to an accuracy oft 0,5 mm.
5.1 Apparatus
Use the manual Vicat apparatus as shown in Figure 1 a) and 1 b) with the plunger shown in Figure 1 c). The plunger shall be of non-corrodible metal in the form of a right cylinder of at least 45 mm effective length and of (10,00 The Vicat mould (see Figure 1 a) to contain the paste under test shall be of hard rubber, plastics 5.2 5.2.1 а?) Ь?) с?) or brass. It shall be of cylindrical or preferably truncated conical form (40,0 NOTE 1 Moulds of other metal may be used provided that they are of the specified depth and that their use has been calibrated against the specified mould.
NOTE 2 It is recommended that a laboratory uses base plates of equal thickness in order that the scale of the Vicat apparatus has only to be adjusted once for several determinations.
5.2 Procedure
5.2.1 Mixing the cement paste
Weigh, to an accuracy of With the mixer in the operating condition:
a) place the water and cement into the bowl taking care to avoid loss of water or cement; complete the addition within 10 s;
b) immediately start the mixer at low speed whilst starting the timing of the mixing stages. In addition, record the time to the nearest minute as 'zero time';
NOTE 1 'Zero time' is the point from which the initial (see 6.2) and final (see 6.3) setting times are calculated.
c) Stop the mixer after 90 s for 30 s during which remove by means of a suitable rubber or plastics scraper all the paste adhering to the wall and bottom part of the bowl and place it in the middle of the bowl;
Dimensions in millimetres
а?) Ь?) с?) d) е?) 1 2 З? 4 5 6 7 8 a) Side view with mould in upright position for initial setting time determination
b) Front view with mould inverted for final setting time determination
c) Plunger for standard consistence
d) Needle for initial set
e) Needle with attachment for final set
1 Mould
2 Correcting weights
3 Base plate
4 Container
5 Water
6 Airvent (0 = 1,5)
7 Air vent
8 View from below needle with attachment for determining final setting time
d) 5.2.2 5.2.3 NOTE (to Fig. 1) Only one correcting weight is required for each Vicat apparatus if the mass of the plunger and the needles with and without the attachment is always the same e.g. (9,0 d) restart the mixer and run at low speed for a further 90 s. The total mixer running time shall be 3 min.
NOTE 2 Any other mixing method may be used provided that it has been calibrated against the reference method.
5.2.2 Filling the mould
Transfer the paste immediately to the lightly oiled mould, which has previously been placed on the lightly oiled base-plate, and fill it to excess without undue compaction or vibration. Remove any voids in the paste by gently tapping the slightly overfilled mould against the ball of the hand. Remove the excess by a gentle sawing motion with a straight-edged implement in such a way as to leave the paste filling the mould and having a smooth upper surface.
NOTE Some oils have been found to affect the setting time test; mineral-based oils have been found to be suitable.
WARNING Wet cement paste is highly alkaline and can cause skin burns. Avoid direct contact with skin during manual operations by wearing protective gloves.
5.2.3 Determination of standard consistence
Adjust the manual Vicat apparatus with the plunger (Figure 1 c)), attached in advance of the test, by lowering the plunger to rest on the base-plate to be used and adjusting the pointer or the scale to read zero. Raise the plunger to the stand-by position. Immediately after levelling the paste, transfer the mould and base-plate to the Vicat apparatus and position it centrally under the plunger. Lower the plunger gently until it is in contact with the paste. Pause in that position for between 1 s and 2 s in order to avoid initial velocity or forced acceleration of the moving parts.
6 6.1 6.1.1 II 6.1.2 Then release the moving parts quickly and allow the plunger to penetrate vertically into the centre of the paste. The release of the plunger shall occur 4 min + 10 s after zero time. Read the scale at least 5 s after penetration has ceased or 30 s after the release of the plunger, whichever is the earlier.
Record the scale reading, which indicates the distance between the bottom face of the plungerand the base-plate, together with the water content of the paste expressed as a percentage by mass of the cement. Clean the plunger immediately after each penetration.
Repeat the test with pastes containing different water contents until one is found to produce a distance between plunger and base-plate of (6 6 SETTING TIME TEST
6.1 Apparatus
6.1.1 General
The apparatus described in this clause is that used in carrying out the reference method. Automatic setting time apparatus conforming to the requirements of the reference method may be used.
NOTE 1 Other automatic or manual setting time apparatus, based on the same test principles, may be used provided that they have been calibrated against the reference method.
NOTE 2 Experience has shown that the reference method, in which the specimens are tested under water, is not suitable for some slow setting cements. An alternative method of test is set out in Annex A. The specifications for cements and other products will state when this alternative method is to be used.
6.1.2 Container, for immersing the filled moulds in water maintained at (20,0 6.1.3 6.1.4 6.1.5 6.2 6.2.1 NOTE Various storage containers may be used providing that the surface of the specimen is immers