21,4 Witt: Cement and Concrete 369 
TABLE 2.—Data on solutions employed. 
"aie Solution ado 
Salt. nar ages centi- | for nor- f - 
7 | by anal-| 2! om-| Of salt, | tiverad-| tee eens 
ysis), |*!8tency.* "| teal. ical. 
dg. cm, 
Sodium chloride .....-.-------.-.---- 0.05 | 0.0029 22) 0.0640| 0.0252 0.0388 
iO ee re 0.10} 0.0058 23 0.1889/ 0.0527] 0.0812 
De: ik: 0.50} 0.0291 23} 0.6695 0.2684] 0.4061 
[1 ES EES er ee Cee eae we 1.00} 0.0582 22| 1.2810) 0.5040| 0.7770 
__ ee a eae ace alas 0.05 | 0.0084 22} 0.0753) 0.0361 | 0.0892 
De 0.10} 0.0068 23| 0.1575 | 0.0756 | 0.0819 
Weg! i oceris alia cre, 0.50} 0.0342 23| 0.7874/ 0.3779 | 0.4095 
, 3 Eales ale a a 1.00} 0.0685 22| 1.5065|/ 0.7226| 0.7839 
Copper chloride 2.2.02 202 5 0.05 0. 0084 22 0.0741 0.0851 | 0.0890 
Die icstac li: domino ane 0.10; 0.0067 23} 0.1549 0.0782 |" 0.0817 
Do ccidoawecds pete s 0.50} 0.0387 23} 0.7745| 0.36683 | 0.4082 
Do. soon hemne SRT 1.00! 0.0674 22| 1.4824/ 0.7011] 0.7818 
Sodium nitrate 2220. ee 0. 05 0.0043 22 0. 0937 0.0258 | 0.0684 
js MEMES Gee Soe E RT a oe) 0.10 | 0.0085 23 | 0.1959| 0.0530] 0.1419 
Dodissnsan.sokalts cutie 0.50} 0.0426 23 0.9795 | 0.2650 | 0,7145 
i es oe ae 1.00| 0.0852 22| 1.8789! 0.5069] 1.3670 
Potasium nitrate 0.05 | 0.0051 22| 0.1116} 0.0482| 0.0684 
Do. 0.10 | 0.0102 | - 23 0.2384) 0.0904) 0.1480 
Do 0.50 | 0.0508 23} 1.1670} 0.4520] 0.7150 
Do. Sh 1.00} 0.1015 22| 2.2382| 0.8646 | 1.3686 
Ammonium nitrate 0.05 | 0.0040 | 22} 0.0883} 0.0199 | 0.0684 
Do. Tee Bie 0.10 | 0.0080 23} 0.1846] 0.0416 | 0.1430 
ps a aay ae 0.50/ 0.0401 23 | 0.9230! 0.2079 | 0.7151 
Do....- 1.00 | 0.0803. _ 22) 1.7659) 0.3978 | 1.3681 
Sodium sulphate ___. _.__-..._._____- €.05 | 0.0086 22| 0.0785 | 0.0254! 0.0581 
iia e sorte tor 0.10} 0.0071 23} 0.1643| 0.0582) 0.1111 
Do. ae ie 0.50} 0.0857 23} 0.8215| 0.2661 | 0.5554 
TR cl ead is A ae ge eae ters 1.00} 0.0714 22} 1,5719| 0.5091 | 1.0628 
WAC alphetes 2 a 0.05 | 0.0040 22| 0.0886! 0.0859] 0.0527 
a os eae ee Sf 0.10} 0.0081 23 | 0.1852| 0.0751 { 0.1101 
Do. Sen 0.50/| 0,0408 23 0.9260} 0.8753 | 0.5507 
We i ke 1.00 0.0806 23} 1.7721] 0.7181] 1.0540 
Copper sulphate .__.....__-_________ 0.05 | 0.0040 22} 0.0881! 0.0351, 0.0530 
Wo. Qase is ete es 0.10 | 0.0080 23 | 0.1843| 0.0734] 0.1109 
Deco. 0.50} 0,¢401 23} 0.9215 | 0.8672] 0.5543 
165.25. “i 1.00 | 0.0801 22; 41.7628] 0.7025] 1.0603 
Sodium bicarbonate>______.__._____ 0.05 | 0.0020 22; 0.0447] 0.0125! 0.0816 
Dex sens: 0.10 | 0.0041 23} 0.0985 | 0.0262] 0.0661 
Do a . 0.50 | 0.0203 22| 0.4472| 0.1259! 0.3168 
C1” Gea ge AN AR ona Mee Pa 1.00} 0.0407 22} 0.8947| 0.2509] 0.6827 
Potassium bicarbonate>_____________ 0.05 | 0.0024 22| 0.0538] 0.0185 | 0.0318 
Dieriterk eric csc bicwccaysce 0.10! 0.0049 23 0.1126} 0.0449} 0,0663 
Pi parc ge ce 0.50} 0.0245 23} 0.5629| 0.2246| 0.3319 
Sas ane ee 1.00} 0.0489 22/ 1.0769] 0.8706} 0.6365 
® The normal consistency values given in this column are averages for the four cements. 
In nearly every case the variation was only 1 or 2 per cent, In gauging Cement IV with 0.50 
N copper sulphate and with 0.50 N potassium bicarbonate, however, the normal consistency 
was unusually high, being 26 and 28 per cent, respectively. These two values were not counted 
in the averages given here. 
> The concentrations of these solutions are based on the amount of COs; present. They are 
only half the indicated concentrations with respect to alkalinity. : 
18920833 
