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Northlake 635(7)-LR 980708'REPORT OF DRILLEL tlELLED PIER INSPEt. ON ENGhNEERING, INC. 8901 Carpenter Frwy., Suite #100 Dallas, Texa~ 75247 Date of Service: 07/02/1998 Report No.: 9817189 Report Date 07/08/1998 Client No.: 71765000 Project No.: 43-2479-97 Client: Prentiss Properties Limited, lnc. Project: Calling Center COPy Atto: David Glass Coppell. Texas 3890 W. N.W. Hv~7, Suite 400 ' Dallas TX 75220 SeN, ices: Drilled belled pier inspecmion. On this date, an HBC Engineering necknician arrived at nhe above ~=~ ..... ' jobsite as scheduled for drilled belled c:~ inspection. ~ antache~ sheer for recorded data. --' to -' ' dc non have grid lines ~- the c. lans This NOTE: ~ =~= ~ denai~ of piers is icsaned or_ .--_he south side of the bui!din~. ?bev are idenuified as Pier-i, Pier-2, _~-ier-3 and_~_-'~--. ~ from eas~ ~c :.;esr_. Technician Time: 7:00 am nc 6:00 Technician: Brian Otis ~ Engineering, Inc. Report Distribution: (1) Premiss Properties Limited, Inc. (l) ttalff Assocmte~. Inc. (1) Butler Construction (1) City of Coppell Eugene Harbour (1) Alliance Architects. Inc. ( 1 ) HCBeck Comractors Vice President (1) Brockette Davis [)rake, Inc. (1) Cit}- of Coppell This report is exclusively lbr thc use of the client mdicated abox e and shall not be reproduced except in full without the written approval of IIBC Engineering, Inc. 99SS Page I of 1 Project: Calling Center Report No.: 9817189 Coppell, Texas Date of Service: 07/02/98 Project uo.: 43-2479-97 Technician: B. Otis Page: 1 of 1 Pier Identification #5 #7 10.5-5 10.5-4 10.5-3 10.5-2 10.5-1 P-1 P-2 P-3 P-4 Pier Diameter (in.) 24 _2._4_ .............. 30 ...... 30 30 ...... 30_ .... 30 1.8 ............ 18~ 18 .... 18___ Bell Diameter (in.) 54 54 72 72 72 72. 72 42 4__2 42 42 Top of Pier Elevation (ft) I~!_A_.. N/A ......... _N_i.A N/A N/A ...... _N_/A N/A ...... N/A _ ___ NiA NiA ....... ~/A Req. Depth From Exist. Grade (ft) 1_0_:0_ ......10.0 ............ 1__.0_.? 10.0 10.0 .. _1_0_:0 10.0 ..... 10.0_ ...... 10.0 10.0 ....... 1__0.:0 Initial Depth of Pier From Existing Grade (ft) 13.0 12.8 __-1_2:_0_ 11.0 1 ~.:_2_ .... 1__2.0 10.9 . __ 1..3.0 ......_1.2.5 1_2.._8__ .1_1__.0 Final Depth 0~Pier~r~)m Existing Grade (ft) 13.0 13.0 12.3 11.2 11.4 .. 12.2 11.0 13.2 12.9 13.0 11.4 Depth From Top of Concrete (fi) 10.6 10.5 12.3 11.2 _ _ 1_1_:4_ .... 12.2 11..0_ ...... 12.0 .. 11.0 __12.0 ..... 10.5 Conditi_o_n _o.f_B.ottom (wet or dry) .... D~ ....... Dry Dry Dry ..... Dry Dry . __D_r¥ ...... Dry Dry ___ Dry Dry Plumb Within Tolerance (yes or no) Yes Yes Yes Yes Y_e_s Yes Yes Yes Yes .... Yes Yes Casing Diameter (in) N/A N/A N/A N/A_ ............ ~_/A N/A .__ _N_!_A N/A N/A ....... N/A N/A Cased Depth {ft) N/A N/A N/A N/A N/A N/A_ ...... N/A N/A N/A N/A N/A Number of Vertical Bars (ea.) 6 6 10 10 10 ...... 40_ 10 ...... .4_ ...... 4 4 ..... ~ ........ Reinforcing Bar Size (#) 6 6 8 ..... _8~ ...... 8__ 8 8 6 _6_ ..........6 6 Length of Vertical Bars (ft.) 11.2 11.:_1~ .......1_3_.5 ........ _1.3_.3 13.3 13.0 ..... 12.5 11.6 10.5 11.5 10.0 Time Drilling Was Completed 8:51 am 8:30 am 1:20 pm 1:50 pm ......2!1._5.._pm .... 2:45 pm 3:1_5._pm __ 3:40 pm 3:58 pm ____4.:20 pm 4:27 pm Time Concrete Was Placed 3:10 pm 3:17 pm 3:32 pm 3:40 pm 3:47 pm 3:56 pm 4:25 pm 4:38 pm 4:45 pm 4:53 pm 5:02 pm CONCRETE COMPRi_. SIVE STRENGTH TES ENGINEERING, LNC. 8901 Carpenter Frwy., Suite #100 Dallas, Texas 75247 Date of Service: 06/04/1998 Report No.: 9814388 Report Date 07/08/1998 Client No.: 71765000 Project No.: 43-2479-97 Client: Prentiss Properties Limited, Inc. Project: Calling Center Attn: DavidGlass Coppell, Texas COPY 3890 W. N.W. H~x% Suite 400 Dallas TX 75220 Services: Obtain samples of fresh concrete at the placement locations, perform required field test and cast compressive strength samples. PROJECT DATA CONTRACTOR: Butler Construction CONCRETE CLASS: 9351 CONCRETE SUPPLIER: Pioneer Concrete PLACEMENT DATE: 06./04/1998 BATCH TreE: 12:30 pm eLANT: 22 TIME SAMPLED: 1:30 pm BY: Keith Fowler SPECIFICATION REQUIREMENTS WEATHERCONmT~ONS: Partly cloudy, hot STRENGTH: 4000 psi @ 28 Days TEMPERATURE (F)- AIR 96 F CONCRETE: 93 F SLL'MP: 4-6" TRUCK NO: 1824 TICKET NO: 704072 AIR: 3-6% AIR CONTENT (%): 4.9 UNIT WEIGHT (pcf): N/A TEST METHOD: ASTM C- 143 PLACEMENT LOCATION: Southeast entrance drive, southeast comer of building ASTM C- 172 ASTM C-39 SAMPLE LOCATION: 90'S/70'E REPORT OF TESTS ACCUMULATIVE YARDS: 60 CYLINDER MEASL'RED MAXIMUM COMPRESSIVE .MARKED SI.UMP DATE AGE LOAD STRENGTH FRACTURE SET NO. (inches) IESTED (days) (lbs. force) (psi) TYPE 1 1 5.50 06/11/1998 7 107980 3820 1 2 5.50 06."11/1998 7 106350 3760 Average 3790 1 3 5.50 07/02/1998 28 121760 4310 1 4 5.50 07..'"02/1998 28 130110 4600 Average 4460 Technician time on report 9814389. Technician: Keith Fowler Started: Finished: ~ Engineering, Inc. Report Distribution: ( 1 ) Prentiss Properties Limited, Inc. ( 1 ) 1 lallT Associates, Inc. (1) Butler Construction { 1 ) City of Coppe'.l Eugene Harbour (I) Alliance Architects, Inc. (1) Evert-'Butler Const. Vice President (1) Brockette Davis Drake. Inc. (1) I IBC Engineering; Mr. Eugene t tarbour lhis report is exclusively for thc use of the client indicated abox e and shall not be reproduced except in full without the written approval of HBC Engineering. Inc. 01AK Page I of 1 CONCRETE COMPR _-- SIVE STRENGTH Z"'I ENGLNEERING, INC. 8901 Carpenter Frwy., Suite ~100 Dallas, Texas 75247 Date of Service: 06/04/1998 Report No.: 9814390 Report Date 07/08/1998 Client No.: 71765000 Project No.: 43-2479-97 Client: Prentiss Properties Limited, Inc. Project: Calling Center Atto: David Glass Coppell, Texas ~~~y 3890 W. N.W. H~% Suite 400 Dallas TX 75220 Services: Obtain samples of fresh concrete at the placement locations, perform required field test and cast compressive strength samples. PROJECT DATA CONTRACTOR: Butler Construction CONCRETE CLASS: 9337 CONCRETE SUPPLIER: Pioneer Concrete PLACEMENT DATE: 06/04/1998 BATCH TIME: 1:00 pm PLANT: 22 TI.TIE SAMPLED: 2:30 pm BY: Keith Fowler SPECIFICATION REQUIREMENTS WEATHER CONDITIONS: Partly cloudy, hot STRENGTH: 3000 psi ~ 28 Days TEMPERATURE (F)-AIR 94 v CONCRETE: 95 F SLI.IMP: 5-7" TRUCKNO: 551 TICKETNO: 704073 AIR: N/A AIR CONTENT (%): N/A r.XIT WEIGHT (pc0: N/A TEST METHOD: ASTM C-143 PLACEMENT LOCATION: Piers ASTM C- 172 ASTM C-39 SAMPLE LOCATION: B.9-0.3 REPORT OF TESTS ACCUMUI.ATIVE YARNS: 9 CYLINDER MEASURED MAXIMUM COMPRESSIVE MARKED SLUMP DATE AGE LOAD STRENGTH FRACTURE SET NO. (inches) TESTED (days) (lbs. force) (psi) TYPE 1 1 6.50 06/11/1998 7 66950 2370 1 2 6.50 06/11/1998 7 69010 2440 Average 2410 1 3 6,50 07/02/1998 28 89800 3180 1 4 6.50 07/02/1998 28 92050 3260 Average 3220 Techniciar. -_i.w.e or. repcrt ~14389. Technician: Keith Fowler Started: Finished: ~ Engineering, Inc. Report Distribution: (1) Prentiss Properties Limited, Inc. ( 1 ) Halff Assocm:es, Inc. (I) Butler Construction (1) City of Coppcil Eugene Harbour (1) Alliance Architects. Inc. (1) EverffButler CoAst. Vice President (1) Brockette Davis Drake. Inc. (1) l iBC Engineering; Mr. Eugene 1 larbou:' This report is exclusively for thc use of the client indicated above and shall not be reproduced except in tull without the written approval of HBC Engineering, Inc. 01AK Page 1 of I