7007 SEAWAY BLVD 2019-02-06 - Laserfiche WebLink

• 1 ........-- -.',',:,',1,,,';'''•'; '.( r 1 `n{K'fir 1it1, i. I//////� ,''':':'•':'!„..-:,,t;::''..':,:, � } 1 r. �,4".' { \ :.� : M //� :1a F.L.D. Rep P1t. 1 ,. ' F FIBERMESH : Compressive strength • Relative effect on r concrete cracking ��ii"iii • Flexural strength i::::-;,..,...;•.4.,;-,.;` iiiiiwi� ;.Q • Water migration rates //a/'/// ,, • • Splitting tensile r • , strength • Distribution.of • Direct tensile Fibermesh in concrete s .4C10N�N�r • Modulus of elasticity • Conclusions EA We \ • Concrete setting times / E4l.G//YEE. L t , r 's r. o �. f ?,':i '' .1 , M1I. ',; •,.,}...:i r JLC r.,-e-',V-"-I ,, NOTE:The data contained in this report represents one of the most comprehensive studies to date on the properties,performance characteristics and value of polypropylene fiberwhen added to concrete.Results apply only to Fibermesh.The study was conducted by a registered professional engineer noted for his concrete expertise. A test program, designed to produce useful engineering data should be based on a comparative parameter. When the data is expressed as a percentage of a control test, this parameter can then be used in estimating the potential performance of most any Portland Cement concrete containing the same addition rate of FIBERMESH. The following comparisons are based on ready-mix concrete which contained 5 sacks of 94 pounds each (42.7 kg) of cement per cubic yard (6.5 sacks per cubic meter), 3/4" (19 mm) max. aggregate, and a W/C ratio of 0.64. The control set of specimens were cast first; then 1.5/lbs./cubic yard (890 grams per cubic meter) of polypropylene fiber was added and mixed for five minutes before the second set of specimens were made. Concrete slumps were: Control Concrete = 5-1/2"(140mm) FIBERMESH Concrete = 4-3/4"(121mm) Specific variations from the above mix will be noted. Compressive Strength, psi (N/mm2) RELATIVE Individual Average Percent EN G I N E E R I N G DATA 28 DaysControl 0 Ib/yd.3890(27.229) 0 3920(27.439) 3905(27.334) 0 I. COMPRESSIVE STRENGTH (ASTM C-39), psi (N/mm2) FIBERMESH 1 Ib/yd. 4260(29.819) 4220(29.439) 4240(29.679) + 9 Control FIBERMESH Percent FIBERMESH 2 lb/yd.4350(30.440) Individual Average Individual Average Average 4340(30.379) 4345(30.414) +11 18 Hours 340 (2.485) 370 (2.59) Note:Concrete contained 5.5 sks/yd.(7.20 sks.per m3),3/4"(19 mm) 370 (2.590) 355(2.485) 370 (2.59) 370(2.59) +4.2 max. and was batched in a ready-mix truck. 1 Day 510 (3.47) 490 (3.43) Slumps = Control = 4.0" (100 mm) 440 (3.08) 475(3.325) 380 (3.36) aas(3.395) +2.1 Fiber 1 Ib/yd. (593 gm/m3) = 3.75" (95 mm) 7 Days 1440 (10.08) 1450 (10.15) Fiber 2 Ib/yd. (1186 gm/m3) = 3.0" (76 mm) 1360 (9.52) 1400(9.80) 1530 (10.71) 1490(10.43) +6.4 28 Days 2520W(17.65) 2520(11(17.64) II. FLEXURAL STRENGTH (ASTM C-78) 2470(11(17.29) 25400/(17.78) (6" x 6" x 18" Beams)(15 x 15 x 46 cm) 1855(�1(12.985) 2280(15.96) 2403(�1(16.82) 2485(17.395) +9.0 Modulus of Rupture, psi 11iSignet Laboratory 1�1San Jose State University Laboratory Control FIBERMESH Percent Individual Average Individual Average Average 7 Days 240(1.680) 300(2.100) 275(1.925) 258(1.806) 275(1.925) 288(2.016) +11.6 28 Days 365(2.555) 380(2.660) I.A. COMPRESSIVE STRENGTH, psi (N/mm2) 350(2.450) 358(2.506) 400(2.800) 390(2.730) + 8.9 The following test data were also produced by Signet Laboratory and issued in a report entitled"Evaluation of FIBERMESH Synthetic Fibers in Concrete", by P. Kraai(June 15. 1983). III. SPLITTING TENSILE STRENGTH Compressive Strength, psi (ASTM C-496), psi (N/mm2) Individual Percent Control FIBERMESH Percent Individual Average Individual Average Average I 0 lb/yd. 2030(14.210) 0 7 Days 190(1.330) 195(1.365) PIBERMESH 1 Ib/yd. 2270(15.890) +12 165(1.925) 178(1.246) 190(1.330) 194(1.358) +9.0 FIBERMESH . 2 lb/yd. 2310(16.170) +14 28 Days 275(1.925) 290(2.030) 290(2.030) +5.5