TABLE XLV.—General effects of seasoning on the strength of sound commercial Portland cements. [Prit. JourN. Sct, VII, A, No. 8. To face page 168. 
Fineness. Neat briquettes. 1:3 standard crushed quartz sand briquettes. 1:3 standard Ottawa sand briquettes. 1:8 standard Tarlac sand briquettes. 
— | a Amount F i 5 a S r ; : Se | ean ee | 7 ee For 7 ae 
Suet of water Tensile strength in pounds Tensile strength in pounds | Tensile strength in pounds | ‘Tensile strength in pounds 
Sam- aa cee required per square inch. per square inch. | | per square inch, | per square inch, 
ple | Brand. Source. ee | Through | Through | #59% for a ee SE eee Cee RE SE rs ORs coh an St Pk” ‘ = 
num- aérated.| “509. a 100. dpled agian Nagi AmiounE Hehe Aree Metiod Ameunt | Method Amount ———————s 
al f . 0: of water . 0. of water : °. of water A f of wat : 
lee | use mies sonEI molding. used. Age in days. molding. used. Age inidays: molding. used. Age in days. modi eae Age in days. 
Th 28. 90. 360. 1 28. 90. 360. 7. 28. | 90. 360. a ees 90. 860. 
i 
SSS = = = arr - — -| —|—___— —! =\— i —| = 
Days. | Per cent.| Per cent. Per cent. Per cent. Per cent. Per cent, | | Per cent. | | 
1 B Average contents of one barrel - 0 77.0 | ™ 90.0 2,83 23.5) A. S. T. M__- 23.5 161 310 442 478 | U.S. A. E. (1902) _| 12.5 26 12 141 238 | A. S. T. M__- 10.0 55 106 244 817A. So 1 Mt | 10.0 57} 181 287 380 
2 Bi wiles Gh) te ee ep eee LOO Woes Sele encoeo an 2.79 PEW) i= 4 do seeeees 27.0 123 194} 280 OPA Seas (Serine ee | 12.5 18 | | 10.8 65 185 202 250 
| 
3 (oy) 5 ee (lj SoS, aS ee 0 16.6 89.1 2.93 PE Beas (0) <a oe 24.5 260 872 | 482 GBI ee a yee ea | 12.5 74 | 10.1 110 153) 278| 856 
11.8 79 M7 193 245 
‘ b 3 | 208 OE eee Ole ee se eee a - — — —_ 
4 Ce Se Glo he ee eee AWC ER SER ae Seen 2, 58 35.0 )____. doy =sea4 35.0 123 2 242 259 do 12.5 57 a Th THERE aa 
27.0 27.0] 890) 458) 537| 6546 |___.a 12.5] 188 ——22:6 | _108 )_270'| _287 | _808 
5 Deena CO Ore nent ea eos 0 80.2 94.8 2,99 KEW Gl) <3 =e p 5 (Q)) EC eee () oncice soe) p £ re ~ 68 |_ 121 | 182 | 260 
GiN) Mee eee Eee Seer ot 2.95 2905) |= -—- Gos. 2a-= 29.5 264 388 448 CUR) eee Cle pene Sener 12.5 105 EGS) 122 208 284 
6 D 
uf D SUF Ee eee eel aeetcemcy 2.91 30.5 |_____ doreoneens 30.5 262 387 443, 475 C6 (cheer ees rs rate eet [ae ayy Soke memes Reeseas| we tenna | ieee | wamene ns 
BPR (Seen 20,0 672 737 729 636 |_-__- Geese 11.0 253 309 323 260 || | | | 
20. d sone 9.5 286) 370! 366 332 | A. S. T. M. 10.0 242 288 297 372 
B W ure BLY che aod ie Sh A ee] 20.0 738 740 695 053 |seeee Gor 25 eso! 12.5 203 276 304 238 || s 
| een Grr | Roe USS 5-0 Satan ene eee HO ere asl eee ee 8.03 CPN Sapa a epee Sea] Fay Sofia began ea Gases ess 4 12.5 187 220 281 PY Ct eee eee onl bee: oe ee beeen Coon Dee ores Per er eee erro meme | wots erate | eee 
NO ge 5c ke ae Ci eee ral (lee 2.99| 24.0 ie BED ees BAW ACh BER) SESE SN tt eee 12.5] 105] 195] 248| 275 |do_______ 9.7| 184] 299) 301] 01 |_-._-do__..... 11,0} 181] 250] 271] 370 
U.S. A. J 
| 
os | EC | ee Oise ae setae ae areca! 0 88.4) 97.2 2.97 
12) |e EA | Bee Omen see aeees cabo Saceecteens 88 |----------|---------- 2.90 
13 Teh Neos 0 he tenance estado asa C]0\| eee Seo eee ee 2.83 
14 = 
16 
16 
au 
, 18 
19|° M EA ee eee =| Sree cee 2.91 
20); M ABO eee sade dee 2.86 
== nee 
