2004 English Special Provisions to Item 421 - Hydraulic Cement Concrete (All)


2004 English Special Provisions by Item (All)
Specification Information
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SP421-041  PDF  RTF   - For project 0028-14-109, 0118-10-055, 0176-02-094, 0336-01-046 in Angelina, Houston, Orange, San Augustine Counties. Replace paragraph five of Article 421.2.E.1 Coarse Aggregate to allow higher decant values. One-Time Use.
SP421-040  PDF  RTF   - For project 0081-03-051, 0816-04-044 in Collin, Denton Counties. Modification of note 10 (from 117+-3 to 107+-3) under Article 421.4 One-Time Use.
SP421-039  PDF  RTF   - For project 0028-09-111 in Orange County. Adds language allowing structural concrete coarse aggregate decant values to be raised to that of concrete pavement coarse aggregate. One-Time Use.
SP421-038  PDF  RTF   - For project 0195-03-075 in Denton County. For this project, Item 421, “Hydraulic Cement Concrete,” of the Standard Specifications, is hereby amended with respect to the clauses cited below, and no other clauses or requirements of this Item are waived or changed hereby. One-Time Use.
SP421-037  PDF  RTF   - For project 0135-02-045 in Collin County. Combines required SP421-035 with SP421-006. One-Time Use.
SP421-035  PDF  RTF   - Raises the 5-cycle Magnesium Sulfate Soundness loss for coarse and intermediate aggregates when air entrainment in the concrete has been waived. Required for all projects using Item 421, beginning with the November 2009 letting. Replaces SP421-002 SP421-013 SP421-034 . (Change Memo: de-43-09). Statewide Use.
SP421-034  PDF  RTF   - This special provision lowers Option 7, allowable alkali per cubic yard from 4.0 lbs to 3.5 lbs and updates Option 6 lithium. Required for all projects using Item 421 ''Hydraulic Cement Concrete'' beginning with the September 2009 letting. Replaces SP421-031 .Replaced by SP421-035 . (Change Memo: de-29-09). Statewide Use.
SP421-033  PDF  RTF   - For project 0196-07-027, 0196-07-029 in Dallas County. Updated header to be consistent with the current project. One-Time Use.
SP421-032  PDF  RTF   - For project 0909-22-141 in McLennan County. For this project, Item 421, “Hydraulic Cement Concrete,” of the Standard Specifications, is hereby amended One-Time Use.
SP421-031  PDF  RTF   - Adds modified F Fly Ash (MFFA) as an approved Supplementary Cementing Material (SCM), allows Tex-470-A Required on all projects with Item 421 beginning with the May 2008 letting. Replaces SP421-024 .Replaced by SP421-034 . (Change Memo: de-07-08). Statewide Use.
SP421-030  PDF  RTF   - For project 0043-05-100 in Wilbarger County. Optimized concrete aggregate gradation for concrete pavement. The text was edited to include all of the requirements of sp421024 One-Time Use.
SP421-029  PDF  RTF   - For project 0013-10-073 in Tarrant County. This provision applies only to the three concrete mixtures required under Research Project 5-9029-01 (Implementation of the Use of Higher Microfines in Concrete Pavements). One-Time Use.
SP421-028  PDF  RTF   - For project 2263-02-082 in Nueces County. Materials, Section E.2. Fine Aggregate. The final paragraph is voided and replaced by the following. For all classes of concrete, provide fine aggregate with a fineness modulus between 2.30 and 3.10 as determined by Tex 402 A. One-Time Use.
SP421-027  PDF  RTF   - For project 2367-01-036 in Jefferson County. Materials, Water, Fine Aggregate, Mortar and Grout, have been voided and replaced. Equipment, Concrete Plants and Mixing Equipment is supplemented by the following. One-Time Use.
SP421-026  PDF  RTF   - For project 0315-07-022 in Washington County. Furnish the following information for each material in the proposed mix designs: Supplier, Source, Type or class, Mill certificate (cement and supplementary cementitious materials) Product name (chemical admixtures. One-Time Use.
SP421-025  PDF  RTF   - For project 0346-11-007 in DeWitt County. Chemical Limits for Mix Water is voided and replaced by the following, and Acceptance Criteria for Questionable Water Supplies is voided and replaced by the following. One-Time Use.
SP421-024  PDF  RTF   - Addresses plant certification, over-design requirements, change entrained air requirements, and adds provisions for high performance concrete. Required on all projects with Item 421 beginning with the October 2006 letting. Replaces SP421-020 .Replaced by SP421-031 . (Change Memo: de-27-06). Statewide Use.
SP421-023  PDF  RTF   - For project 0062-04-035 in Cass County. For all classes of concrete, provide fine aggregate with a fineness modulus between 2.30 and 3.10 as determined by Tex-402-A. One-Time Use.
SP421-021  PDF  RTF   - For project 0090-03-053 in Oldham County. Adds HPC One-Time Use.
SP421-020  PDF  RTF   - Allows for TxDOT, by plan note, to provide for inspection of plants and trucks in lieu of certification by an outside party. Required on all projects with Item 421 beginning with the June 2006 letting. Replaced by SP421-024 . (Change Memo: de-16-06). Statewide Use.
SP421-019  PDF  RTF   - For project 2437-01-017 in Hutchinson County. Do not use mix design options 6, 7, or 8 as specified in Section 421.4.A.6, when High Performance Concrete (HPC) is specified. (Change Memo: de-53-99). One-Time Use.
SP421-018  PDF  RTF   - For project 0167-01-081 in El Paso County. For all classes of concrete, provide fine aggregate with a fineness modulus between 2.30 and 3.10 as determined by Tex-402-A. One-Time Use.
SP421-017  PDF  RTF   - For project 0905-06-061 in Lubbock County. Hydraulic Cement Concrete. Amended One-Time Use.
SP421-016  PDF  RTF   - For project 0302-06-014 in Parmer County. Hydraulic Cement Concrete. Amended One-Time Use.
SP421-015  PDF  RTF   - For project 1126-04-006 in Lubbock County. Hydraulic Cement Concrete. Amended. One-Time Use.
SP421-014  PDF  RTF   - For project 1633-01-008 in Yoakum County. Hydraulic Cement Concrete. Amended One-Time Use.
SP421-013  PDF  RTF   - Hydraulic Cement Concrete. Amended. Replaced by SP421-035 . Districtwide Use. Fort Worth District.
SP421-011  PDF  RTF   - For project 0721-01-013 in Terry County. Hydraulic Cement Concrete. Amended One-Time Use.
SP421-010  PDF  RTF   - For project 6137-92-001 in Lynn County. Hydraulic Cement Concrete. Amended One-Time Use.
SP421-009  PDF  RTF   - For project 0145-02-023 in Lamb County. For concrete classes not identified as structural concrete in Table 5, the Engineer may designate on the plans. One-Time Use.
SP421-007  PDF  RTF   - For project 0081-02-045 in Tarrant County. Provides for optimized gradation. Similar to SP 421-001, except that structural concrete classes will require optimized aggregate gradation, not just Class P. Also, mix designs will be submitted in Concrete Works program. One-Time Use.
SP421-006  PDF  RTF   - For project 0009-11-209 in Dallas County. When Class S (Lightweight) concrete is required, use expanded shale, clay or slate materials, produced by the rotary kiln process, coarse aggregates meeting the requirements of ASTM C 330. One-Time Use.
SP421-005  PDF  RTF   - For project 0275-01-139 in Potter County. When high performance concrete (HPC) is required, the use of hydraulic cement only for the cementitious material One-Time Use.
SP421-004  PDF  RTF   - For project 0090-02-048 in Oldham County. When high performance concrete (HPC) is required, the use of hydraulic cement only. One-Time Use.
SP421-003  PDF  RTF   - For project 0275-23-002 in Gray County. Use of Hydraulic Cement Concrete. One-Time Use.
SP421-002  PDF  RTF   - Improve performance and quality of bonded concrete overlay. Replaced by SP421-035 . Districtwide Use. Houston District.
SP421-001  PDF  RTF   - For project 0043-08-071 in Wichita County. Update types of materials used. One-Time Use.

2004 English Special Provisions by Item (All)
Specification Information
Search For a Special Provision or Specification