... ofcement in accordance with the procedure stated in Test Method C 430 Record the percentage (corrected) ofcement passing the sieve as r 8.2 Preparation of the Suspension: 8.2.1 Dispersion of ... factor which, in the derivation of the formula, varies inversely as the density of the particles (g/cm3) 10 Calculation 10.1 Calculation of Speci c Surface: 10.1.1 Calculate the turbimetric speci c ... value If the microammeter indication continues to fluctuate, look for loose connections in the lamp and photoelectric cell circuits, see that the rheostat contacts are clean, and make certain that...
... will cause the cement to fail the requirements for time of setting in Specification C150 Reagents and Materials 7.1 Standard Sand, 20-30 and Graded, conforming to the requirements of Specification ... and Scraper, conforming to the requirements of Practice C 305 6.4 Glass Graduates, conforming to the requirements of Specification C 490 6.5 Masses and Mass Determining Devices , conforming to ... immediately place the 10-mm plunger of the Vicat apparatus, Fig of Test Method C 187, in contact with the surface of the mortar at the midpoint of the container on the longitudinal center line Set...
... accordance with Specification C 490 Proportioning, Consistency, and Mixing of Mortar 9.1 The quantities of dry materials required for each batch shall be 400 g (cement plus gypsum) and 1100 g of ... portland cement, %, g SO3 content of the gypsum, %, and 7.0 SO3 content of the cement- gypsum mixture, % 6.3 If the SO3 content of the gypsum is unknown, the gypsum shall be analyzed for SO3 content ... information on details ofcement test methods, reference may be made to the “Manual ofCement Testing,” which appears in the Annual Book ofASTM Standards, Vol 04.01 The American Society for Testing...
... minimum in-place slump Recover the simulated in-place concrete with plastic after each slump test 3.6 Part B Mixer Truck 3.6.1 Discharge approximately cubic foot of test batch concrete and perform ... entrained) Concrete Ambient Temperature Temperature File Number Project Number Class of Concrete Ready Mixed Plant Date of Test Contractor/Company and signatures of persons performing tests: SCDOT ... Isolate the concrete from vibration for the duration of the test 3.5.3 Obtain concrete from the simulated in-place concrete and perform slump every hour until slump has reached the specified minimum...
... the percentages of tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite shall be calculated from the chemical analysis as follows: Tricalcium silicate ... and certifying that the cement conforms to applicable requirements of this specification 16 Keywords 16.1 hydraulic cement; portland cement; specification C150 APPENDIX X1 MANUFACTURER’S CERTIFICATION ... max, % Tricalcium silicate (C3 S),E max, % Dicalcium silicate (C2 S),E min, % Tricalcium aluminate (C3 A)E max, % Tetracalcium aluminoferrite plus twice the tricalcium aluminateE (C4 AF + 2 (C3 A)), or...
... conform to the requirements of Test Method C 157 5.7 Length Comparator—The length comparator shall conform to the requirements of Specification C 490 12 Calculation 12.1 Calculate the length change ... Specification C 778 Number of Test Specimens 8.1 Make at least four test specimens (Note 1) NOTE 1—Although the number of test specimens may consist of four specimens from a single batch of mortar, ... 750 g of cement, 1500 g of graded standard sand, and an amount of mixing water sufficient to produce a flow of 110 % The flow shall be determined in conformance with the procedure as described...
... addressed to ASTM Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend If you feel that your comments have not received ... C 706 The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard Users of ... multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or service @astm. org (e-mail); or through the ASTM website...
... room shall conform to the requirements of Specification C 511 Number of Specimens Test Specimens 8.1 Make two or three specimens from a batch of mortar for each period of test or test age Cement, ... curvature, grind the face or faces to plane surfaces or discard the specimen A periodic check of the cross-sectional area of the specimens should be made NOTE 7—Specimen Faces—Results much lower than ... laboratories participating in the portlandcement and masonry cement reference sample programs of the Cement and Concrete Reference Laboratory Av Multi-lab 13.3 If the range of three specimens exceeds the...
... sufficient water to give a paste of normal consistency in accordance with the procedure described in Test Method C 187 Mix this batch in accordance with the procedure described in Practice C 305 ... humidity of the moist storage facilities to the requirements of Specification C 511 Preparation of Test Specimens 9.1 Mixing Cement Paste—Prepare the standard batch consisting of 650 g ofcement ... C 151 requirements of Practice C 490 except that molds need not be sealed humidity of the molding room within the limits of Practice C 490 5.2 Moist Storage Facilities—Maintain...
... C 184 take care that it is not continued too long Then replace the cover and clean, following the same process as described in 5.1 If the cement is in proper condition, there ... follows: 6.1.1 When No Correction is Used: F 100 @~Rs 100!/W# (2) F 100 Rc Mechanical Sieving 8.1 Mechanical sieving devices may be used, but the cement shall not be rejected if it meets the fineness ... typical fineness as the range at which the sieve is to be used Determine the percent residue of the test material on each of the three sieves, in accordance with Section Plot the average percent...
... Specification C 1005 Evaluate the weighing device for precision and accuracy at a total load of kg 5.6 Glass Graduates—Glass graduates of 250-mL capacity, conforming to the requirements of Specifications ... Standard Sand 7.1 Use sand conforming to the requirements of Specification C 778 for 20–30 sand Sampling 8.1 Sample the cement in accordance with Practice C 183 Procedure 9.1 Batch—Proportion the standard ... 9.1, taking the speci c gravity ofportlandcement as 3.15 and of 20–30 standard sand as 2.65 When the hydraulic cement is other than portland, the appropriate value for its speci c gravity shall...
... than 90 % Preparation ofCement Paste4 5.1 Mix 650 g ofcement with the percentage of mixing water required for normal consistency following the procedure described in Practice C 305 Distilled water ... information on details ofcement test methods, reference may be made to the “Manual ofCement Testing,” which appears in the Annual Book ofASTM Standards, Vol 04.01 The American Society for Testing ... Take care to keep the 1-mm needle straight, and the needle must be kept clean as the collection ofcement on the sides of the needle may retard the penetration, while cement on the point may increase...
... of bed of cement, cm3, as determined in accordance with 4.2, and e = desired porosity of bed ofcement (0.500 0.005) (Note 5) NOTE 5—The porosity is the ratio of volume of voids in a bed ofcement ... may be taken fromTables 1-3, respectively Calculation 6.1 Calculate the speci c surface values in accordance with the following equations: Ss=T =T s (5) where: S = speci c surface of the test ... Preparation of Bed ofCement Prepare the test bed ofcement in accordance with the method described in 4.5 5.4 Permeability Tests—Make the permeability tests in accordance with the method described...
... Bleeding Capacity—Calculate the bleeding capacity as follows: Tests on Mortars 8.1 Batch—The mortar mix shall consist of 930 g ofcement and 2325 g of graded sand as specified in Specification C 778 ... Many chlorinated hydrocarbons are considered to be toxic substances which can be absorbed through the skin, but the major exposure is from inhalation of vapors Chronic poisoning can occur from ... starting time the completion of striking off the surface of the mortar in the container this interval, quickly scrape down into the batch any paste that may have collected on the side of the bowl;...
... mortar in accordance with the instructions for a six-cube batch given in the section on Composition of Mortars of Test Method C 109, except use a water -cement ratio of 0.5, by mass Mix mechanically ... mechanically in accordance with Procedure for Mixing Mortars of Practice C 305 8.2 Split the batch immediately after mixing then place approximately 450 g of mortar in each of the two polyethylene containers ... Keywords 14.1 calcium sulfate; hydraulic cement; sulfate content C 265 For additional useful information on details ofcement test methods, reference may be made to the “Manual ofCement Testing,”...
... is part of acceptance testing, sample the cement in accordance with Practice C 183 FIG Gillmore Apparatus and Test Specimen C 266 remain there except when the determinations of time of setting ... shall conform to the requirements of Specification C 511 Procedure 9.1 Preparation ofCement Paste: 9.1.1 Mix 650 g ofcement with the percentage of mixing water required for normal consistency in ... consistency in accordance with Test Method C 187, following the mixing procedure for cement pastes described in Practice C 305 9.1.2 A time of setting specimen and an autoclave expansion specimen (see...
... time scrape down into the batch any paste that may have collected on sides of the bowl C 305 the batch any mortar that may have collected on the side of the bowl; then for the remainder of this ... adjustment bracket to provide greater clearances than those specified in 4.1 For additional useful information on details ofcement test methods, reference may be made to the “Manual ofCement Testing,” ... the bowl shall be quickly scraped down into the batch with the scraper prior to remixing NOTE 4—Caution: The clearances between the paddle and the bowl specified in this practice are suitable when...
... (0.51-mm) Holes Calculation 7.1 Calculate the fineness of the cement to the nearest 0.1 % as follows: proportional to the amount of residue Example of Determination of Sieve Correction Factor: Residue ... calibrated Difference Correction factor + 0.029/0.093 100 + 31.18 12.2 % 0.122 g 0.093 g 5 Rc Rs ~100 C! F 100– Rc + 0.029 g + 31.2 % (1) (2) where: F fineness of the cement expressed as the corrected ... addressed to ASTM Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend If you feel that your comments have not received...
... absence of self-centering arrangements on machines with large lower bearing surfaces, the center of this surface directly below the center of the upper spherically seated head shall be accurately ... shall be accurately located A circle or concentric circles of appropriate diameters shall be scribed on the lower bearing surface around this point A cylindrical pedestal of appropriate diameter ... surfaces of the points of support and load application Check these faces by applying a straightedge If there is appreciable curvature, grind the face or faces to plane surfaces or discard the specimen...
... of modified cube faces is necessary, it can be accomplished best by rubbing the specimen on a sheet of fine emery paper or cloth glued to a plane surface, using only moderate pressure Since such ... disturbing the position of the specimen and apply the load in accordance with the Procedure section of Test Method C 109 /C 109M The testing of the broken portions as modified cubes shall follow breaking ... If the testing machine has no provisions for automatic accurate centering of a pedestal exactly below the center of its upper spherical bearing head, a hardened steel cylinder of suitable diameter...