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Georgian Place-LR 9802111341 West Mockingbird Lane · Dallas, Texas 75247 · 972.647.6700 · www. txi.com Larry Jackson Construction 5112 Sun Valley Drive Fort Worth, TX 76119 Attn: Mr. Larry Jackson RE: 8204 8206 8274 The attached concrete mix designs utilizing the appropriate ASTM C-33 or ASTM C-330 aggregate are proposed for use on the above referenced project for ready-mixed concrete to be furnished by TXI. To ensure that the correct mix is delivered to your ~roject, please order by the mix design number which appears in the upper left hand corner of the mix design. Texas Industries certifies that the above mix designs, when ordered by specified design identity, and delivered by TXI, will meet or exceed the indicated design strength at the designated age when tested in accordance with the applicable and current ASTM Standards C 31, C 39, C 78, C 172, C 293, applicable provisions of C 94, and evaluated in accordance with applicable provisions of ACI Building Code. TXI would like to be included on your mailing list to receive all test reports. ASTM C 94 entitles a manufacturer to receive copies of all test reports when strength of concrete is used as a basis for acceptance. Please contact us if you have any questions or require any additional information. Please notify TXI of approval of the proposed mix designs prior to their use. Failure to notify us prior to first placement shall constitute acceptance. To ensure that the proper mix designs are ordered, please send a copy of this letter, after approval, to the above referenced project to be used by the person ordering the concrete for this job. Sincerely, Texas Industries Michael A. Caldarone, P.E. Manager - Q.A. / Q.C. Mix ~: 8204 Description: 470~ ADMIX/AEA Strength: 3000 psi @ 28 Days 1 "CS MACHINE PLACED Maximum Coarse Aggregate: 1" - 1~4 CRUSHED STONE Maximum Water/Cement Ratio: 5.90 gal/sack or 0.549 lbs/lb Cement/Cementitious Content: 5.25 sacks (per cubic yard) Maximum Placement Slump: 5.00 inches Air Entraining Agent: ASTM C-260 Admixture: ASTM C-494 Type A or D MATERIAL QUANTITIES PER 1.0 CUBIC YARD AT S.S.D 376 lbs. ASTM C 150 TYPE I CEMENT 94 lbs. ASTM C 618 FLY ASH 1840 lbs. 1" - ~4 CRUSHED STONE 1336 lbs. CONCRETE SAND 258 lbs. or 31.0 Gallons of Water 2.0 to 6.0 oz/cwt of ASTM C-494 Type A Specified Air Content: 3.0% - 6.0% Placement Slump: 4.00 + or - 1.00 inches Mix $~: 8206 Description: 564~ ADMIX/AEA Strength: 3000 psi @ 28 Days 1 "CS HAND PLACED Maximum Coarse Aggregate: 1" ~4 CRUSHED STONE Maximum Water/Cement Ratio: 4.91 gal/sack or 0.457 lbs/lb Cement/Cementitious Content: 6.31 sacks (per cubic yard) Maximum Placement Slump: 5.00 inches Air Entraining Agent: ASTM C-260 Admixture: ASTM C-494 Type A or D MATERIAL QUANTITIES PER 1.0 CUBIC YARD AT S.S.D 451 lbs. ASTM C 150 TYPE I CEMENT 113 lbs. ASTM C 618 FLY ASH 1840 lbs. 1" ~4 CRUSHED STONE 1254 lbs. CONCRETE SAND 258 lbs. or 31.0 Gallons of Water 2.0 to 6.0 oz/cwt of ASTM C-494 Type A Specified Air Placement Slump: 4.00 + or - 1.00 inches Mix #: 8274 Description: 6.00SK ADMIX/AEA Strength: 4000 psi @ 28 Days 1 "CS AS REQUIRED Maximum Coarse Aggregate: 1" ~4 CRUSHED STONE Maximum Water/Cement Ratio: 5.17 gal/Sack or 0.457 lbs/lb Cement/Cementitious Content: 6.00 sacks (per cubic yard) Maximum Placement Slump: 5.00 inches Air Entraining Agent: ASTM C-260 Admixture: ASTM C-494 Type A or D MATERIAL QUANTITIES PER 1.0 CUBIC YARD AT S.S.D 564 lbs. ASTM C 150 TYPE I CEMENT 1840 lbs. 1" - ~14 CRUSHED STONE 1273 lbs. CONCRETE SAND 258 lbs. or 31.0 Gallons of Water 2.0 to 4.0 oz/cwt of ASTM C-494 Type A Specified Air Content: 3.0% 6.0% Placement Slump: 4.00 + or 1.00 inches PUMPING NOTES / RECOMMENDATIONS 2. 3. 4. o 5" minimum diameter~lines with ~o reduction to smaller lines. Keep rubber hose ~absolute min~l~um length and plan pipe with as few 90 degree a~es as possibl~. Samples for slump and strength tests s~ould be taken discharge end of hose for strength guarantee to be valid. To prime pump lines, a minimum of 8.0 sack grout should be used for lubrication. In the case of streng~t_~ concrete, equivalent strength grout should be used if~ grout remains in the placement. Pump mixes are based on minimum cement content pumped at ground level. As pump line increases in length or height and/or layout configuration changes, additional cement may be required to assure strength and pumpability at additional cost to the contractor. TXI cannot control, and is therefore not responsible for excessive loss of entrained air content when loss occurs as a result of boom configuration or free fall discharge from hose. To ensure minimum air loss when pumping, maintain a continuous flow of concrete through the entire length of pipe and do not subject concrete to free fall.' We are enclosing all available back up data for the referenced mix design(s). If the strength information is not available, or is insufficient, confirmation tests may have to be conducted by your laboratory. Date~ 02/11/98 CONCR~I'B DISIGN ~VALUATIOH ** St&tAstica Compiled From Indeponden~ L~orl~o~ Tee~ Spoct~n~ *, mx ~or: 8204 S~reng~h: )000 pla · 28 Diyi Test Number 10/27/97 2 10/27/97 3 10/27/97 4 10/27/97 5 11/06/97 6 11/06/97 7 I1/07/97 8 11/10/97 9 11/10/97 10 11/19/97 11 11/19/97 12 11/21/97 13 11/25/97 14 12/01/97 15 12/01/97 16 12/10/97 17 12/10/97 18 12/10/97 19 12/10/97 20 12/10/97 21 12/11/97 22 12/11/97 23 12/11/97 24 12/11/97 25 12/11/97 26 12/19/97 27 12/30/97 28 12/31/97 29 01/02/98 30 01/02/98 Averages Temperature Plant (Fahrenheit) Date Number Ambient Concrete 43 57 75 43 56 72 31 81 31 80 12 50 70 12 47 68 41 65 78 41 44 52 13 44 64 25 50 58 12 38 64 13 58 68 12 58 64 35 58 74 35 52 76 33 52 63 13 58 61 13 62 65 13 60 65 13 48 60 13 48 59 13 50 59 13 50 60 13 45 59 13 48 59 40 66 70 13 59 64 50 56 43 43 68 53 66 Placement Percent Slump(in) of Air 4.75 4.2% 6.00 3.5% 5.5O 4.8% 5.25 5.0% 3.25 5.6% 3.50 4.6% 4.00 N/A 7.00 N/A 3.75 N/A 4.50 N/A 3.00 3.4% 4.00 5. O0 2.75 5.5% 2.00 5.6% 5.75 3.5% 5.00 4 0% 4.75 ] 2% 5.25 3 2% 5.50 3 2% 5.50 4 0% 5.75 ] 2% 5.75 4 0% 5.50 ] 4% 5.25 3 0% 4.00 N/A 5.50 N/A 4.75 5.4% 5.00 4.5% 5.25 4.6% 4.76 4.2% ......... 28 Day ........ Cumulative PSI 1 PSI 2 PS! Avg Average 4080 4260 4170 41'10 3680 3720 3700 3935 4630 4560 4595 4155 5760 6120 5940 4601 5060 4770 4915 4664 5840 5780 5810 4855 5150 5080 5115 4892 4140 4070 4105 4794 5340 5190 5265 4846 4580 4690 4635 4825 4770 5220 4995 4840 44]0 4110 4270 479] ]730 ]950 3840 4720 4690 4690 4718 5480 5480 4768 4880 4750 4815 4771 5510 5400 5455 4811 5210 5140 5175 4832 5450 5310 5390 4861 4480 4560 4520 4844 4730 4870 4800 4841 4720 5010 4865 4843 5180 4800 4990 4849 5010 4920 4965 4854 5100 4860 4980 4859 5710 5630 5670 4890 3500 3520 3510 4839 4850 4760 4805 4838 4210 3980 4095 4812 4120 4200 4160 4790 Moving Avg of 3 Range 180 40 4155 70 4745 360 5150 290 5555 60 5280 70 5010 70 4828 150 4668 110 4965 450 46]] 120 4368 220 4267 4670 4995 130 5250 110 5148 70 5337 140 5025 80 4900 140 4728 290 4885 ]80 4940 90 4978 240 5205 80 4720 20 4662 90 4137 230 4353 80 COMMENTARY OF STATISTICAL EVALUATION OF CONCRETE DESIGN RESULTS Mix Num: 8204 Strength: 3000 psi ~ 28 Days Paragraph 5.5 of ACI 318-89 provides that as data becomes available during construction, the amount by which (F'cr) must exceed the specified value of (F'c) may be reduced, provided: (a) 30 or more test results are available and average of test results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.1, or (b) 15 to 29 test results are available and average of tes~ results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.2. The required average compressive strength has been calculated using a standard deviation calculated in accordance with ACI 318-89 Section 5.3.1.1 or Section 5.3.1.2 and is the larger value of these calculations: F'cr = F'c + 1.34(SD) = 3000 + 1.34( 614.0) = 3823 F'cr = F'c + 2.33(SD) - 500 = 3000 + 2.33( 614.0) 500 = 3931 SUMMARY OF STATISTICAL ANALYSIS 28 Day Test Data Number of Tests .......................... 30 Maximum Value ............................ 5940 psi Minimum Value ............................ 3510 psi Range .................................... 2430 psi Average Strength ......................... 4790 psi Standard Deviation ....................... 614 psi Required Average Strength to satisfy minimum probability conditions of ACI 318-89 Section 5.3.2.1 ............... 3931 psi Deei~n exceee beyond code requiremente... 859 psi Dat~ 02/11/98 TEI[A~ INDUSTRIES CONCRETE DESIGN ~V~~LUATZOH *° StsttS~lCS Compilsd From Indapsndant Laboratory Hlx Numbor~ 8206 Strsngth~ 3000 psi · 28 Days Temperature Test Plant (Fahrenheit) Placement Percent Number Date Humber Ambient Concrete Slumpiin) of Air 1 12/01/97 24 68 0.50 ].6% 2 12/01/97 24 65 3.00 4.5% 3 12/02/97 12 55 62 3.50 5.0% 4 12/05/97 25 45 60 3.50 5.0% 5 12/05/97 24 55 2.50 4.2% 6 12/05/97 24 ].50 6.0% 7 12/05/97 24 64 3.00 4.5% 8 12/05/97 24 65 2.50 4.2% 9 12/06/97 24 62 4.00 ].9% 10 12/06/97 24 60 3.90 ].5% 11 12/06/97 24 64 3,50 3.8% 12 12/06/97 24 66 5,00 4.0% 13 12/06/97 24 68 7.50 4.0% 14 12/09/97 35 60 68 4.25 4.]% 15 12/10/97 24 59 5.00 7.0% 16 12/10/97 24 68 2.50 17 12/10/97 24 67 3.00 ].4% 18 12/11/97 25 37 51 3.50 7.0% 19 12/11/97 24 58 3,50 3,4% 20 12/11/97 24 59 3.00 3.2% 21 12/11/97 24 61 4.50 ],4% 22 12/12/97 50 38 66 4.75 5.1% 23 12/12/97 50 45 65 4.50 24 12/15/97 25 58 54 5.00 6,2% 25 12/16/97 25 62 66 3.75 5.0% 26 12/16/97 25 58 63 4.00 5.1% 27 12/18/97 25 65 64 4.00 5.1% 28 12/18/97 25 58 56 3.50 29 12/19/97 25 64 66 3.75 5.5% 30 12/19/97 25 60 64 4.00 6.0% *** Averages *** 54 6] 3.75 4,7% ......... 28 Day ........ Cumulative PSI 1 PSI 2 PSI Avg Average 7520 7640 7580 7580 6550 6600 6575 7078 5640 5660 5650 6602 5300 5420 5360 6291 5270 6190 5730 6179 6190 6190 6190 6181 6190 6800 6495 6226 6190 7370 6780 6295 6440 6450 6445 6312 6750 6720 6735 6354 7230 7320 7275 6438 6600 6690 6645 6455 6560 6590 6575 6464 5570 5840 5705 6410 4990 4860 4925 6311 6830 6900 6865 6346 7000 6940 6970 6382 4740 4710 4725 6290 6680 6830 6755 6315 7070 7460 7265 6362 7390 7320 7355 6410 6160 6380 6270 6403 5990 6100 6045 6]88 4600 4720 4660 6316 5390 5410 5400 6279 5210 5270 5240 6239 5100 5210 5155 6199 4690 4830 4750 6147 5370 5]60 5365 6120 5120 5160 5140 6088 Moving Avg of 3 Range 120 50 6602 20 5862 120 5580 920 5760 0 6138 610 6488 1180 6573 10 6653 30 6618 90 6665 90 6832 30 6308 270 5735 130 5832 70 6253 60 6187 30 6150 150 6248 390 7125 70 6963 220 6557 110 5658 120 5368 20 5100 60 5265 110 5048 120 5090 10 5085 40 COMMENTARY OF STATISTICAL EVALUATION OF CONCRETE DESIGN RESULTS Mix Num: 8206 Strength: 3000 psi ~ 28 Days Paragraph 5.5 of ACI 318-89 provides that as data becomes available during construction, the amount by which (F'cr) must exceed the specified value of (F'c) may be reduced, provided: (a) 30 or more test results are available and average of test results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.1, or (b) 15 to 29 test results are available and average of test results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.2. The required average compressive strength has been calculated using a standard deviation calculated in accordance with ACI 318-89 Section 5.3.1.1 or Section 5.3.1.2 and is the larger value of these calculations: F'cr = F'c + 1.34(SD) = 3000 + 1.34( 870.9) = 4167 F'cr = F'c + 2.33(SD) - 500 = 3000 + 2.33( 870.9) - 500 = 4529 SUMMARY OF STATISTICAL ANALYSIS 28 Day Test Data Number of Tests .......................... 30 Maximum Value ............................ 7580 psi Minimum Value ............................ 4660 psi Range .................................... 2920 psi Average Strength ......................... 6088 psi Standard Deviation ....................... 871 psi Required Average Strength to satisfy minimum probability conditions of ACI 318-89 Section 5.3.2.1 ............... 4529 psi Design excess beyond code requirements... 1559 psi TIXAS ZNDUSTRIIS COHCRrT[ D~SI(I~ IFVALUATION Nix l'/umber~ 8274 Strength~ 4000 pal · 28 Daya Test Number Date 1 11/11/97 2 11/17/97 3 11/20/97 4 11/20/97 5 11/20/97 6 11/20/97 7 11/20/97 8 11121197 9 11/21/97 10 11/25/97 11 12/05/97 12 12/05/97 13 12/05/97 14 12/05/97 15 12/05/97 16 12/09/97 17 12/10/97 18 12/12/97 19 12/12/97 20 12/12/97 21 12/15/97 22 12/17/97 2] 12/17/97 24 12/17/97 25 12/17/97 26 12/18/97 27 12/19/97 28 12/29/97 29 12/30/97 30 12/30/97 Tempera:u£e Plant {Fahrenheit} Placement Number Ambient Concrete Slump(in) 43 64 68 6.00 43 54 68 4.50 40 44 66 4.75 18 52 70 4.50 18 64 2.00 18 63 3.50 13 40 7] 4.50 43 56 72 4.00 18 63 70 5.25 43 65 72 5.50 46 65 70 5.00 46 50 59 4.75 46 ]8 59 4.75 46 32 49 4.50 46 30 47 4,75 43 65 68 5.50 42 40 61 4.25 46 37 53 5.00 46 37 5] 5.25 46 37 54 5.50 43 45 60 6.00 46 37 60 4.25 46 38 61 4.00 46 ]9 60 4.50 43 62 68 5.00 41 60 71 4.25 43 65 72 4,50 4] 50 49 3,50 38 52 5.00 38 55 6.00 49 62 Percent ......... 28 Day ........ Cumulative of Air PSI I PSI 2 PSI Avg Average N/A 4690 4770 47]0 47]0 N/A 5020 49]0 4975 485] N/A 5050 5170 5110 49]8 N/A 5550 5550 5550 5091 4.3% 6170 6260 6215 5316 4.0% 5380 5490 5435 5336 5.8% 5020 5020 5020 5291 N/A 6130 6310 6220 5407 N/A 4810 4560 4685 5327 N/A 4500 4440 4470 5241 1.3% 5360 5490 5425 5258 3.2% 4780 4630 4705 5212 3.5% 5490 5360 5425 5228 3.3% 5780 5820 5800 5269 3.2% 5330 5490 5410 5278 N/A 4750 4660 4705 5243 N/A 5120 4950 5035 5230 5.4% 6000 6190 6095 5278 4.5% 6170 6070 6120 532] 5.1% 5990 6130 6060 5360 N/A 4110 4230 4170 5303 3.4% 6010 6170 6090 53]9 3.2% 5940 5780 5860 5361 3,4% 5810 5990 5900 5384 N/A 5100 5160 5130 5374 N/A 5290 5130 5210 5367 N/A 5760 5830 5795 5383 r{/A 5]40 4950 5145 5]75 4.7% 5340 5460 5400 5376 ].2% 4470 4460 4465 5345 4.69 4.0% Moving Avg of ] Range 80 90 4938 120 S212 0 5625 90 5733 110 5557 0 5558 180 5308 250 5125 60 4860 130 4867 150 5185 130 5310 40 5545 160 5]05 90 5050 170 5278 190 5750 100 6092 140 5450 120 5440 160 5373 160 5950 lBO 56]0 60 5413 160 5378 70 5383 390 5447 120 5003 10 COMMENTARY OF STATISTICAL EVALUATION OF CONCRETE DESIGN RESULTD Mix Num: 8274 Strength: 4000 psi ~ 28 Days Paragraph 5.5 of ACI 318-89 provides that as data becomes available during construction, the amount by which (F'cr) must exceed the specified value of (F'c) may be reduced, provided: (a) 30 or more test results are available and average of test results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.1, or (b) 15 to 29 test results are available and average of test results exceeds that required by Section 5.3.2.1, using a standard deviation calculated in accordance with Section 5.3.1.2. The required average compressive strength has been calculated using a standard deviation calculated in accordance with ACI 318-89 Section 5.3.1.1 or Section 5.3.1.2 and is the larger value of these calculations: F' cr = F' c + 1. 34 (SD) = 4000 + 1.34 ( 583.0) = 4781 F'cr = F'c + 2.33 (SD) - 500 = 4000 + 2.33 ( 583.0) 500 = 4858 SUMMARY OF~ISTICAL ANALYSIS 28 DafTest Data Number of Tests .......................... 30 Maximum Value ............................ 6220 psi Minimum Value ............................ 4170 psi Range .................................... 2050 psi Average Strength ......................... 5345 psi Standard Deviation ....................... 583 psi Required Average Streng~ to satisfy minimum probability ¢on~ion~ of ACI 318-89 Section 5.3.2.1 ............... 4858 psi Design excess beyond code requirements... 487 psi MIDLOTHIAN CEMENT PLANT * 2,15 Ward Road · Midlothian, Texas 76065 · www. lxi.com SPECIFICATIONS Porlland Comonl Typo 1/11 (Low Alkali) A.S.T.M. C150-97' Bin Number Car Numi)or Tons Date of SamDIin.0 December t 997 Monthly Avo~a.0e IASTM I TEST SPECIFICATION RESULTS CHEMICAL REQUIREMENTS Silica Oxide, Minimum Porconl 20.0 20.7 Alumina Oxide, Maximum Porcon! 6.0 4.3 Iron Oxide, Maximum Porconl 6.0 3.9 Magnesia Oxide, Maximum Percent 6.0 i .2 SO3 (C3A less than 8% ), Maximum Percent ' 34 Loss on Ignilion, Maximum Porconl 3.0 1.0 Insoluble residue, Maximum Porconl -- 0.75 0.22 Tricalcium Alummale, Maximum Pefcenl 8 5 OPTIONAL CHEMICAL FIEQUIFtEMENTS Tolal Alkalies, Max. qb (Na20 equiv.) J 0.60 [. b.32 PHYSICAL REQUlFIEMENTS Specific sur lace, Blaine Minimum (M' 2/Kg) 280 334 Gillmoro, Inilial Set, Minimum (Minutes) 60 163 Gilhnoro, Final Sol, Maximum (Minules) G00 287 Vical, IMinirnum (Minutes) 45 ilnilial. Sol JMaximum (Minutes) 375 105 !A~r Conlenl, Volume, Maximum Percent 12 G :Auloclavo Expansion, lvlaximum Percenl 0.80 0 3 Day Minimum Compressive Slren01h' MPa (i)s0 12.0 (1740) 23.6 (3421) 7 Day Minimum Compressive Sl~'ongth, MPa (Ps0 19.0 (2760) 30.8 (4459) qT^T~ A~ Tr2v^o -- ELLIS COUNTY J.R. Owens , being duly sworn deposes and says; II~al he is Clliel Chemisl of TXI, Midlolhian Cement Plant, who I)mpared tho above ropoJl of lesls and Ihal tho same is Irue and co~[ecl. "Gee ASTM C 150 'l';d)h; 1, Foolnole Gifford-Hill & Company FM 1735 · P.O. BOX 278 ,, CASON. TEXAS 75636 GIFFORD.HILL FLY ASH ANALYSIS MATERIAL: Class C Fly Ash SAMPLED BY: Gilford Hill SOURCE: #750 CASON FLYASH DATE: 11/25/1997 SPECIFICATION: ASTM C-618 TEST PRODCEDURE: ASTM C-311 SAMPLE NUMBER: DATE SAMPLED: PHYSICAL TEST Specific Gravity Variation From Avg.(%) Retained on No. 325(%) Variation, %Points from Avg. Water Requirement(%) Pozz Index, % Control Autoclave Soundness(%) Moisture Content(%) Loss on Ignition CHEMICAL TEST * Silicon Dioxide, SIO2(%) Aluminum Oxide, A1203(%) Iron Oxide, Fe203(%) Total: SiO2;A12o3;Fe203 % Sulphur Trioxide, SO3(%) Magnesium Oxide, MgO(%) Calcium Oxide, CaO(%) Sodium Oxide Eqv, Na20(%) Available Alkalai as Na20(%) 386544 SPECS. 09/03/1997 2.78 ... .15 5.0 (Max.) 20.6 34.0 (Max.) .4 5.0 (Max.) 96.7 105.0 (Max.) 92.2 75.0 (Min.) +.116 +0.8 (Max.) .05 3.0 (Max.) .49 6.0 (Max.) 31.80 ... 18.58 ... 5.15 ... 55.53 50.0 (Min.) 4.01 5.0 (Max.) 6.73 ... 29.33 ... 2.18 ... .87 Jack Cop~ . Quality Control