Section 90 Training Examples By Dulce Rufino Feldman Doran Glauz Tom Ruckman
Materials Verification 1. Cement On Pre-Qualified Product’s List (PQPL)? Yes No (If No, reject mix) us.xls 2. Blended Cement Blended Cement proposed? Yes No (If No, skip to #3) All Blending Materials on PQPL? Yes No (If No, reject mix) 3. Supplementary Cementitious Materials All SCM’s on PQPL? Yes No (If No, reject mix) Fly Ash CaO content verified? Yes No (If No, reject mix) 4. Aggregate Proposed Gradation given? Yes No (If No, reject mix) Within Grading Limits? Yes No (If No, reject mix) On PQPL? Yes No (If Yes, reduced “X” allowed in Section B) for_concrete.pdf
Materials Verification (Cont.) 5. Chemical Admixtures Chemical Admixtures proposed? Yes No (If No, skip to #6) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No _Chem_Admix_List.doc 6. Air-entraining Admixtures Air-Entraining Admixture proposed? Yes No (If No, skip to #7) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No 7. Lithium Nitrate Admixtures Lithium Nitrate Admixture proposed? Yes No (If No, skip to #8) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No
Mix Design Testing and Calculations 8. Shrinkage Test Compliance (for paving, bridge decks, and approach slabs) Shrinkage Test Data Verified Yes N/A No (If No, reject mix) Verify “similar” mix design as needed per Yes N/A No (If No, reject mix) 9. Check Minimum Specified Amount of Cementitious Material OK Reject Include Blended Cement, , and reduction per if necessary 10. Check Amount of Free Water ( ) OK N/A Reject 11. Check Required Use of SCM Equations OK N/A Reject 12. Check Strength Development Equation OK N/A 13. Check Corrosion Control Specifications OK N/A Reject 14. Check Freezing Condition Equations OK N/A Reject
Equation 1 (ASR) Where: UF= Silica fume, metakaolin, UFFA, or RHA, pounds per cy. FA= Fly ash or natural pozzolan conforming to the requirements in AASHTO Designation: M 295, Class F or N with a CaO content up to 10 percent, pounds per cy. FB= Fly ash or natural pozzolan conforming to the requirements in AASHTO Designation: M 295, Class F or N with a CaO content up to 15 percent, pounds per cy. SL= GGBFS, pounds per cy. MC= Minimum amount of cementitious material specified, pounds per cy. X=1.8 for innocuous aggregate, 3.0 for all other aggregate. Note. For precast concrete, MC=TC and X = 0 for innocuous and 3.0 for all other aggregates.
Equation 2 (Cement Check) Where: MC= Minimum amount of cementitious material specified, pounds per cy. MSCM= The minimum sum of SCMs that satisfies Equation 1, pounds per cy. PC= The amount of portland cement in the mix, pounds per cy.
Climate Areas manual/bridgemanuals/bridge-memo- to-designer/page/Section%208/8-2.pdf
Example #1 – Bridge Deck in CA I
Additional Information Submitted Cement Source: CEMEX – Cupertino, Type II SCM Source: Headwater Resources, Inc. Type (a) Centralia Fly Ash Aggregate Source: Teichert – Esparto (Innocuous) Fly Ash CaO content: 8% Shrinkage Test Results: Passed with similar mix approved within 3 years Climate Area: I Concrete in Corrosive Environment: No Concrete to be used for: Bridge Deck Chemical Admixture: 5 oz/cwt Master Builders Pozzolith 322 N (Water Reducing Admixture)
Materials Verification 1. Cement On Pre-Qualified Product’s List (PQPL)? Yes No (If No, reject mix) us.xls 2. Blended Cement Blended Cement proposed? Yes No (If No, skip to #3) All Blending Materials on PQPL? Yes No (If No, reject mix) 3. Supplementary Cementitious Materials All SCM’s on PQPL? Yes No (If No, reject mix) Fly Ash CaO content verified? Yes No (If No, reject mix) 4. Aggregate Proposed Gradation given? Yes No (If No, reject mix) Within Grading Limits? Yes No (If No, reject mix) On PQPL? Yes No (If Yes, reduced “X” allowed in Section B) _for_concrete.pdf
Materials Verification (Cont.) 5. Chemical Admixtures Chemical Admixtures proposed? Yes No (If No, skip to #6) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No _Chem_Admix_List.doc 6. Air-entraining Admixtures Air-Entraining Admixture proposed? Yes No (If No, skip to #7) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No 7. Lithium Nitrate Admixtures Lithium Nitrate Admixture proposed? Yes No (If No, skip to #8) On PQPL? Yes No (If No, reject mix) Dosage Verified (per plans or manufacturer’s recommendations) Yes No
Mix Design Testing 8. Shrinkage Test Compliance (for paving, bridge decks, and approach slabs) Shrinkage Test Data Verified Yes N/A No (If No, reject mix) Verify “similar” mix design as needed per Yes N/A No (If No, reject mix) Condition Maximum Shrinkage of Laboratory Cast Specimens at 28 days Drying (average of 3, %) Paving and approach slab concrete Bridge deck concrete Note. Shrinkage requirement is waived for concrete that is used for precast elements. Required shrinkage testing: AASHTO T 160
Mix Design Calculations 9. Check Minimum Specified Amount of Cementitious Material Include amount of blended cement per Blended cement not used. For bridge decks: MC=675 lbs/cy Reduction of cementitious materials per : Water reducing admixture used: 5% reduction in MC Calculate MC: Therefore, MC= 0.95x675 lbs/cy Calculate TC: OK Reject lbs/cy MC = ≥ + = TC = 641 MCTC lbs/cy
Mix Design Calculations (Cont.) 10. Check Amount of Free Water ( ) OK N/A Reject MC 641
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations Equation 1: UF=0 FA=160 lbs/cy FB=0 SL=0 MC=641 lbs/cy X=1.8 (innocuous aggregate) FA MC OK N/A Reject
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Determine MSCM: MC=641 lbs/cy MSCM=is all fly ash FA MC FA 641 FA = 96.2 lbs/cy MSCM = 96.2
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Equation 2: MC=641 lbs/cy MSCM=96.2 lbs/cy PC=481 lbs/cy OK N/A Reject
Mix Design Calculations (Cont.) 12. Check Strength Development Time Equation Per SSP S8-C02 instructions, only use “Strength Development Time” section for projects in Climate Areas I and II. Strength development time equation: UF=0 F=FA+FB=160 lbs/cy SL=0 TC=641 lbs/cy OK N/A F
Mix Design Calculations (Cont.) 13. Check Corrosion Control Specifications Per SSP S8-C04 instructions, use for concrete in direct contact with a corrosive environment, including those located in Climate Area III as defined in the RTL Guide. OK N/A Reject 14. Check Freezing Condition Equations Per SSP S8-C05 instructions, use when project falls within the post mile limits shown for Climate Area III as defined in the RTL Guide. OK N/A Reject
Questions
Example #4 – Bridge Deck in CA III
Freezing Equations w/ Deicing [(25xUF) + (12xFA) + (10xFB) + (6xSL)] / TC ≥ X and; Equation 2 does not apply. plus the additional constraints: 4x(FA+FB) / TC ≤ 1 and; 10xUF / TC ≤ 1 and; 2x(UF+FA+FB+SL) / TC ≤ 1 And the allowance: 27x(TC-MC) / MC ≤ 5
Additional Information Submitted Aggregate Source: Non-Innocuous Fly Ash CaO content: 10% Climate Area: III Concrete in Corrosive Environment: No Concrete near Deicing Chemicals: Yes Concrete to be used for: Bridge Deck Chemical Admixture: No Water Reducing Admixture
Mix Design Calculations 1. Check Amount of Cementitious Material(Checklist #9) Include amount of blended cement per Blended cement not used. For bridge decks: MC=675 lbs/cy Reduction of cementitious materials per : Water reducing admixture not used: no reduction in MC Calculate MC: Calculate TC: OK Reject lbs/cy MC = ≥ + = TC = 675 MCTC lbs/cy
Mix Design Calculations (Cont.) 10. Check Amount of Free Water ( ) 675 TC OK N/A Reject
Mix Design Calculations (Cont.) 2. Check Required Use of SCM Equations(Checklist #11) “Concrete near deicing chemicals” in Section 8-2 Equation 1: UF=0 FA=135 lbs/cy FB=0 SL=203 lbs/cy TC=675 lbs/cy X=3.0 (non-innocuous aggregate) FA TC SL OK N/A Reject
Mix Design Calculations (Cont.) 12. Check Strength Development Equation Per SSP S8-C02 instructions, only use “Strength Development Time” section for projects in Climate Areas I and II. OK N/A 13. Check Corrosion Control Specifications Per SSP S8-C04 instructions, use for concrete in direct contact with a corrosive environment, including those located in Climate Area III as defined in the RTL Guide. OK N/A Reject
Mix Design Calculations (Cont.) 3. Check Freezing Condition Equations (Checklist #14) Per SSP S8-C05 instructions, use when project falls within the post mile limits shown for Climate Area III as defined in the RTL Guide. Equation 2: FA=135 lbs/cy FB=0 TC=675 lbs/cy FA TC OK N/A Reject
Mix Design Calculations (Cont.) 4. Check Freezing Condition Equations (Cont.) Equation 3: UF=0 TC=675 lbs/cy TC OK N/A Reject
Mix Design Calculations (Cont.) 5. Check Freezing Condition Equations (Cont.) Equation 4: UF=0 FA=135 lbs/cy FB=0 SL=203 lbs/cy TC=675 lbs/cy FA SL TC OK N/A Reject
Mix Design Calculations (Cont.) 6. Check Freezing Condition Equations (Cont.) Equation 5: TC=675 lbs/cy MC=675 lbs/cy TC MC 675 OK N/A Reject
Example #6 - Typical Minor Concrete Mix
Additional Information Submitted Aggregate Source: Non-Innocuous Fly Ash CaO content: 10% Climate Area: II Concrete in Corrosive Environment: No Concrete near Deicing Chemicals: No Concrete to be used for: Minor Concrete
Mix Design Calculations 9. Check Minimum Specified Amount of Cementitious Material Include amount of blended cement per Blended cement not used. For minor concrete: MC=505 lbs/cy Reduction of cementitious materials per : Water reducing admixture not used: no reduction in MC Calculate MC: Calculate TC: OK Reject lbs/cy MC = ≥ + = TC = 505 MCTC lbs/cy
Mix Design Calculations (Cont.) 10. Check Amount of Free Water ( ) 510 TC OK N/A Reject
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations Equation 1: UF=0 FA=100 lbs/cy FB=0 FA=150 lbs/cy MC=505 lbs/cy X=3.0 (non-innocuous aggregate) FA MC SL OK N/A Reject
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Determine MSCM (from left to right): UF=0 FA=100 lbs/cy FB=0 FA=150 lbs/cy MC=505 lbs/cy lbs/cy FA MC SL lbs/cy SL = 52.5 = MSCM =
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Equation 2: MC=505 lbs/cy MSCM=153 lbs/cy PC=260 lbs/cy OK N/A Reject
Mix Design Calculations (Cont.) 12. Check Strength Development Equation Per SSP S8-C02 instructions, only use “Strength Development Time” section for projects in Climate Areas I and II. Strength development equation: UF=0 F=FA=100 lbs/cy SL=150 lbs/cy TC=505 lbs/cy F SL 150 OK N/A
Mix Design Calculations (Cont.) 13. Check Corrosion Control Specifications Per SSP S8-C04 instructions, use for concrete in direct contact with a corrosive environment, including those located in Climate Area III as defined in the RTL Guide. OK N/A Reject 14. Check Freezing Condition Equations Per SSP S8-C05 instructions, use when project falls within the post mile limits shown for Climate Area III as defined in the RTL Guide. OK N/A Reject
Example #5 – Bridge Column in CA III
Additional Information Submitted Aggregate Source: Non-Innocuous Fly Ash CaO content: 10% Climate Area: III Concrete in Corrosive Environment: No Concrete near Deicing Chemicals: No Concrete to be used for: Bridge Column Chemical Admixture: 3 oz/cwt Water Reducing Admixture
Mix Design Calculations 9. Check Minimum Specified Amount of Cementitious Material Include amount of blended cement per Blended cement not used. For bridge columns: MC=590 lbs/cy Reduction of cementitious materials per : Water reducing admixture used: 5% reduction in MC Calculate MC: Therefore, MC= 0.95x590 lbs/cy Calculate TC: OK Reject lbs/cy MC = ≥ + = TC = 561 MCTC lbs/cy
Mix Design Calculations (Cont.) 10. Check Amount of Free Water ( ) 564 MC OK N/A Reject
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations Equation 1: UF=0 FA=85 lbs/cy FB=0 FA=169 lbs/cy MC=561 lbs/cy X=3.0 (non-innocuous aggregate) FA MC SL OK N/A Reject
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Determine MSCM (from left to right): UF=0 FA=85 lbs/cy FB=0 SL=169 lbs/cy MC=561 lbs/cy lbs/cy FA MC SL lbs/cy SL = = MSCM =
Mix Design Calculations (Cont.) 11. Check Required Use of SCM Equations (Cont.) Equation 2: MC=561 lbs/cy MSCM=196 lbs/cy PC=310 lbs/cy OK N/A Reject
Mix Design Calculations (Cont.) 12. Check Strength Development Equation Per SSP S8-C02 instructions, only use “Strength Development Time” section for projects in Climate Areas I and II. OK N/A 13. Check Corrosion Control Specifications Per SSP S8-C04 instructions, use for concrete in direct contact with a corrosive environment, including those located in Climate Area III as defined in the RTL Guide. OK N/A Reject
Mix Design Calculations (Cont.) 14. Check Freezing Condition Equations Per SSP S8-C05 instructions, use when project falls within the post mile limits shown for Climate Area III as defined in the RTL Guide. Equation 6: UF=0 F=FA=85 lbs/cy FA=169 lbs/cy TC=564 lbs/cy OK N/A Reject F SL 169
Questions