Standard Test Method for Fineness of Hydraulic Cement by Air Jet Sieving at 45-m (No. 325)

10.1520/c1891 ◽  
2019 ◽  
Author(s):  
Keyword(s):  
Standard Test ◽  
Test Method ◽  
Standard Test Method ◽  
Air Jet ◽  
Hydraulic Cement

New Characterization of Setting Times of Alkali Containing Calcium Phosphate Cements by Using an Automatically Working Device According to Gillmore Needle Test

2006 ◽  
Vol 309-311 ◽  
pp. 825-828 ◽  
Author(s):  
Georg Berger ◽  
Christian Ullner ◽  
Gerhard Neumann ◽  
Heidi Marx
Keyword(s):  
Calcium Phosphate ◽  
Cement Paste ◽  
Standard Test ◽  
Test Method ◽  
Calcium Phosphate Cements ◽  
Standard Test Method ◽  
Setting Times ◽  
Hydraulic Cement ◽  
Working Device

This paper presents equipment for the measurement of initial as well as final setting times of calcium phosphate cements containing alkali to achieve higher solubility. Until now, the selfsetting process of cements also if alkali is integrated has been tested by using the “standard test method for time of setting of hydraulic-cement paste by Gillmore needles” in accordance to ASTM C 266 – 99. This procedure needs high man power and, furthermore, the results have been markedly influenced by individual experiences that are incorporated in the criterion “without appreciable indentation”.

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