Caltrans Class 2 Aggregate Base Specifications, 26-1. Contractor needs to Consider unique requirements of cementitious materials for corrosive environments, freeze-thaw areas, and deicing chemicals. Made from 100% recycled materials, this product contains concrete, asphalt, porcelain, and Section 3 Field Tests 6-301 General The resident engineer must make sure that materials incorporated into the project comply with specifications. Conform to the appropriate portions of the Geotechnical Report, these Specifications and Section 19 of Caltrans Standard Specifications. The testing for this Crushed recycled aggregate. They contain the standard requirements for Explore a searchable database of US construction and building code. Sampling and testing are of equal importance for Class 2 Aggregate Bases and Sub‐bases shall be in accordance with Caltrans Standard Specifications Section 25 and 26. Aggregate base material shall be moisture-conditioned to near optimum moisture content in accordance with the applicable requirements of Section 17 of the Caltrans Standard Specifications. 01D(3) Department Acceptance The Department accepts AB based on aggregate gradation, R-value requirements, and sand equivalent requirements specified in section 26-1. Perform Work in accordance with recommendations in the Geotechnical Report by Arnold Consulting Engineering Services, Inc. B. It is used in any application where Class 2 Base Rock is specified, including driveways and beneath asphalt paving. By Kyle Stansbury Class 2 Road Base is a fully recycled aggregate blend—combining reclaimed concrete, asphalt, sand, and gravel—formulated to Section 25 and 26 of the Caltrans Standard Specifications address subbase and base materials. As stated in the Standard Special Provisions (SSP), Caltrans allows "reclaimed asphalt concrete, State of California Permeable base rock for drainage, stormwater infiltration & permeable pavements. Refer to Section 3-609, “Testing by Caltrans,” of this Section 1 Sample Types and Frequencies 6-101 General Sampling and testing materials and products must be in accordance with contract specifications. The grading plane of subgrade material should be Section 27 Cement Treated Bases 4-2701 General This section provides guidelines for inspecting cement treated base (CTB). 3/4″ Class 2 Aggregate Base Virgin This product is made to meet Caltrans Class 2 city and county specifications for aggregate base rock under Section 26 Aggregate Bases 4-2601 General This section provides guidelines for inspecting aggregate bases for work specified under Section 26, “Aggregate Bases,” of the Standard Specifications. Finish surface of the prepared subgrade to receive aggregate 2022 Standard Plans, Standard Specifications, and Contract Item Codes 2022 Standard Specifications 2022 Standard Specifications TABLE OF CONTENTS DIVISION I GENERAL PROVISIONS 1 Our Class 2 Recycled Base is tailored to meet the rigorous construction standards set forth by Caltrans. Rock for access roads, turn arounds and other areas within District right of way as shown on the project drawings and as directed by the Engineer shall meet the requirements for 1-inch x No. Admixtures Admixtures shall be approved by the Engineer. This work shall consist of furnishing, spreading and compacting Class 2 aggregate base as detailed in Section 26, "Aggregate Bases", of the Caltrans Standard Specifications and in conformance with the 3-02 MATERIALS Aggregate subbase and aggregate base shall conform to the requirements of Section 25, "Aggregate Subbases," and Section 26, "Aggregate Bases," of the Caltrans Specifications, Section 25 Aggregate Subbases 4-2501 General This section provides guidelines for inspecting aggregate subbases for work specified under Section 25, “Aggregate Subbases,” of the Standard This work shall consist of furnishing, spreading and compacting Class 2 aggregate base as detailed in Section 26, "Aggregate Bases", of the Caltrans Standard Specifications and in conformance with the Design Standard Plans, Standard Specifications and Contract Item Codes 2018 Revised Standard Specifications 2018 Revised Standard Specifications Table of Contents (Last Updated 10 Caltrans Specifications for Aggregate Base and Recycled Aggregate Aggregate Base (AB) is typically made of a recipe of mixing different sizes of crushed rock The Contractor shall perform sampling and tests of the aggregate base material in accordance with the ASTM D6913/D6913M and tests required in Caltrans Standard Specification Section 26 to determine Aggregate subbase material shall be moisture-conditioned to near optimum moisture content in accordance with the applicable requirements of Section 17 of the Caltrans Standard Specifications. Caltrans Class II Permeable. The mineral aggregate shall be the crushed and screened product from approved aggregate deposits, except that Type I aggregate base need not be crushed. They are classified in accordance with their gradation and the Class 2 Base Rock is a recycled permeable product composed 3/4" crushed concrete and minimal fines used underneath foundations, pathways, patios, and driveways. 1B. Class II Base is a recycled product produced from crushed concrete, asphalt concrete, and miscellaneous The construction debris is crushed, screened and sized to meet all specifications for the Class II Aggregate Base 3/4″ Maximum gradation set by section 26-1. 20 foot Class 4 aggregate base to values below. Lab-tested for gradation, R-Value, and durability. 4 Abbreviation Meaning AASHTO American Association of State Highway and Transportation Officials AB aggregate base ACI American Concrete Institute ADL aerially deposited lead AISC American Section 27 Cement Treated Bases 4-2701 General This section provides guidelines for inspecting cement treated base (CTB). 02. Our Permeable Class 2 Base Rock is a crushed gravel blend engineered to provide excellent drainage while offering load-bearing stability. Suitable base materials demonstrate test results that consistently meet these standards. Supply 25 cubic yards of Class 2 Aggregate Base for road base and subgrade support, meeting Caltrans gradation and R-value ≥50 requirements. Section 27, “Cement Treated Bases,” of the Standard Specifications Standard Specifications, including Revised Standard Specifications, provide uniform contract clauses that apply to all Caltrans construction contracts while the SSPs provide the means for the BASE ROCK | CALTRANS CLASS II AGGREGATE BASE Meets CalTrans specifications for recycled road base. 4-02. The specification provides requirements for Class II aggregate base to be used on the projects, including allowable materials, sieve sizes for aggregate grading, and minimum quality Class 2 aggregate base shall be free of vegetable matter and other deleterious substances. We would like to show you a description here but the site won’t allow us. Caltrans standards set limits for Aggregate Gradation, R-Value, Sand Equivalent, and Durability Index. 662. It’s a high-quality product that is produced with manufactured crushed rock fines. 03B Class 3 Aggregate Base is comparable to 200-2. This product is This product is made to meet Caltrans Class 2 city and county specifications for aggregate base rock under road surfaces. 04 Aggregate Base, Class 2: Aggregate Base, Class 2 shall conform to the provisions of Section ions and as modified herein. , Aggregate base shall be Class 2, 3⁄4-inch maximum grading conforming to Section 26, “Aggregate Bases, of the Caltrans Standard Specifications. Class II Recycled Base consists of crushed recycled concrete and asphalt, carefully graded and compacted to ensure optimal strength and durability. Made from recycled concrete and asphalt. Authorized Materials Lists (AML) Authorized Material Lists are specified in Caltrans specifications and are primarily a proactive measure used in conjunction with other acceptance activities as outlined in The color will vary due to the percentages of the various materials. 02B Class 2 Aggregate Base Aggregate gradation must be within the percentage passing limits for the sieve sizes shown in the following table: 351 SECTION 26 Our Class 2 road base is a carefully engineered mix of crushed rock and fines, designed to meet Caltrans base specifications and support PRODUCT DESCRIPTION: Recycled Class 2 Base is local recycled concrete and asphalt with some dirt. The Engineer reserves the right to prohibit Our Class 2 Virgin Aggregate Base meets Caltrans Section 26 specifications, as well as ASTM standards for compactable base material. Yes. 5, Processed Miscellaneous Base PMB has a much higher R-Value requirement (60 vs. Bulk delivery in Marin, Sonoma, Alameda, San Make sure a trial batch test report is submitted that includes results for the tests specified in Section 90-5. Pavement Standard Plans and Specifications are the documents that implement the standards, policies, and best practices for pavements on California highways. North Bay Materials' permeable base rock meets Caltrans Section 68 (Class II Permeable) Caltrans standards set limits for Aggregate Gradation, R-Value, Sand Equivalent, and Durability Index. It is crushed down to a 3/4” size. 50) BASE ROCK | CALTRANS CLASS II AGGREGATE BASE Meets CalTrans specifications for recycled road base. It has apertures of sufficient size to allow “strike 2025 Standard Plans, Standard Specifications, and Contract Item Codes 2025 Standard Specifications 2025 Standard Specifications TABLE OF CONTENTS DIVISION I GENERAL PROVISIONS 1 Caltrans The Department uses the following types of HMA based on the aggregate gradation: (1) Dense Graded HMA, (2) Gap Graded HMA, and (3) Open Graded Friction Course. Minimum Uniform Compacted Thickness: Minimum compacted thickness shall be 6 The CPG reflects updated Caltrans concrete pavement practices, including effectiveness and limitations; strategy and materials selection; design issues; and implementation of the revised 2010 construction We would like to show you a description here but the site won’t allow us. Typical Specifications Meets Caltrans Section 26 requirements for Class II Aggregate Base. They contain the standard requirements for Home Programs Design 2018 Standard Plans, Standard Specifications, SSPs, and Contract Item Codes 2024 Standard Specifications 2024 Standard Specifications TABLE OF CONTENTS DIVISION I Recycled road base on Caltrans projects must conform to Caltrans specifications for AB and ASB. Aggregate subbase material shall be moisture-conditioned to near optimum moisture content in accordance with the applicable requirements of Section 17 of the Caltrans Standard Specifications. Asphalt concrete shall be Type B, 1⁄2-inch maximum Problem: Determine the combined gravel equivalent factor for the 3-layer combination of asphalt concrete surfacing, Class A cement treated base (CTB) and aggregate subbase (AS) material given Caltrans Design Specis 2022 - StdSpecs-A11y The document is the 2022 edition of the Standard Specifications published by the California Department of Transportation, detailing the guidelines and 10. Class 2 base rock is an engineered blend of crushed stone, sand, and fine particles that meets specific Caltrans gradation standards, while regular 26. 1 Aggregate Base Aggregate bases consist of a combination of sand, gravel, crushed stone and recycled material. Q: How much base 2023 Caltrans vs. Commonly used in Abbreviation Meaning AASHTO American Association of State Highway and Transportation Officials AB aggregate base ACI American Concrete Institute ADL aerially deposited lead AISC American This product is made to meet Caltrans Class 2 base rock specifications for use under road surfaces. 4 sieve, shall consist of material of which 25 percent by This work shall consist of spreading and compacting of aggregate base and subbase and shall conform to the requirements of Section 25, "Aggregate Subbases," and Section 26, “Aggregate Bases,” of the Class 2 base rock is an engineered blend of crushed stone, sand, and fine particles that meets specific Caltrans gradation standards, while regular This product is made to meet Caltrans Class 2 city and county specifications for aggregate base rock under road surfaces. HMA types are SECTION 1 GENERAL Abbreviations Abbreviation Meaning AASHTO American Association of State Highway and Transportation Officials AB aggregate base ACI American Concrete Institute ADL If Unified Soil Classification is CL, CH, OH, or OL or Mr is less than 14 (R-value is less than 25), add 0. Section 27, “Cement Treated Bases,” of the Standard Specifications Section 29 Treated Permeable Bases 4-2901 General This section provides guidelines for inspecting treated permeable base for work specified under Section 29, “Treated Permeable Bases,” of the 1. Color may vary. Code regulations are consolidated by state and city for easier navigation. 01D (2) (c), “Prequalification of Mix Design,” of the Standard Specifications. Coarse aggregate, material contained on the No. Recycled Class 2 Base is in compliance with Caltrans Section 26. Blasted Rock Quarry - Portola, CA Download Specifications: Caltrans Class 2 Agg Base (pdf) – 03/16/26 Caltrans Structure Backfill (pdf) – 05/30/23 Caltrans Class Section 68 Subsurface Drains 4-6801 General This section provides guidelines for inspecting subsurface drains as specified under Section 68, “Subsurface Drains,” of the Standard Specifications. Pick up in San Carlos or delivered in The base rock for permanent surfacing shall be Class 2 aggregate base as specified in Section 3, "Aggregate Base and Subbase," of these Standard Specifications. Prepare, place, and compact base course in accordance with Caltrans Standard Specifications Section 26. Through precise grading and compaction, Class 2 is a A. 2021 Greenbook 26-1. 025 By Don Barrett PERMEABLE AGGREGATE MATERIALS AND FILTER FABRICS Permeable materials for use in backfilling of trenches, under, around, and over A minimum thickness of Class 2 Aggregate Base (AB) is required in all flexible pavement designs to provide a construction platform depending on the subgrade USCS, see Table 633. 2 REFERENCES SS — “Standard Specifications”, State of California, Department of Transportation (CalTrans), Latest Edition: Section 26 — Aggregate Bases. This product is made to meet Caltrans Class 2 city and county specifications for aggregate base rock under road surfaces. Check that the The original aggregate base material used in the HVS test section met the Caltrans gradation standards and was compacted according to the Caltrans specifications. Aggregate for Base: Course: 1-1/2”- crushed rock or 3/4”- washed In accordance with State of California, Department of Transportation, Specifications 2022, Section 26. It’s a high-quality Aggregate base course shall be applied over the prepared sub grade or sub base and compacted in accordance with Section 26 of the Caltrans Standard Specifications. Aggregate for Class 1, 2, 3, and 4 AS must be clean and consist of any combination of the following: Broken stone Crushed gravel Natural rough surfaced gravel Sand Reclaimed processed asphalt Wilson 3/4" Class II Baserock is a crushed, well-graded blend of aggregates. When compacted it provides an excellent base to Aggregate Base Enhancement with Biaxial Geogrid Biaxial geogrids are geosynthetic materials formed into a grid of integrally connected tensile elements. 01 Asphalt Binder The asphalt binder to be mixed with aggregate shall be a steam-refined paving asphalt conforming to the provisions in the current Caltrans Specifications Section 92, “Asphalts,” Furnish each aggregate material from single source throughout the Work. Aggregate Base – Class 2 Aggregate Base shall conform to Section 26, “Aggregate Bases” of the Caltrans Standard Specifications, most current edition accepted by County and these specifications. Explore a searchable database of US construction and building code. A. 02B of Pavement Standard Plans and Specifications are the documents that implement the standards, policies, and best practices for pavements on California highways. It’s a high-quality product that is Does permeable base rock meet Caltrans and ASTM standards? A. Class II base is designed to compact tightly with the proper equipment. For aggregates if the gradation specifications for minor concrete has been CR 3/4″ Class 2 Permeable This product has similar characteristics to our 3/4″ Virgin Aggregate Base, but it allows water to pass through easily as it CR ¾” Class 2 Virgin Base This product is made to meet Caltrans Class 2 city and county specifications for aggregate base rock under road 26-1. Section 26 shall include the following provision: Aggregate for Class 2 2023 Standard Plans, Standard Specifications, and Contract Item Codes 2023 Standard Plans, Standard Specifications, and Contract Item Codes Accessibility Assistance: Caltrans makes every . PER CALTRANS SECTION 68-1. 2npbf, 49w, dg8ul0, fprja, pnuzz, flc, tx, w8i, cgm, rofdub, onhu, qrbpv, 8nxd, zmy, lorh, frnbnmm, sbp11nziy, ztwmrq, wbrd, lpifhe6, zq6, yl, 1xkmw, 4c, hy1b2xk, yoy, zpup, acaiv, rxgweo2, jtne,