Table 1A Classes of Concrete

Provide customers with tailor-made solutions

3.1.6 Concrete specification - NHBC Standards 2021 NHBC ...

03/01/2017  For the full list of ACEC classes, refer to Table A.2 of BS 8500-1 or BRE Special Digest Part C Table C1 for natural ground locations, and Table C2 for brownfield locations. 2 Applies only to sites where concrete

Get Price

Table of concrete design properties (fcd, fctm, Ecm, fctd ...

01/01/1992  The characteristic compressive strength f ck is the first value in the concrete class designation, e.g. 30 MPa for C30/37 concrete. The value corresponds to the characteristic (5% fractile) cylinder strength according to EN 206-1. The strength classes of EN1992-1-1 are based on the characteristic strength classes

Get Price

Why the BS 8500 durability tables are the way they are

to concrete or reinforced concrete. Table 2 (page 51) is a summary for corrosion induced by carbonation classes XC3, XC4 as well as corrosion induced by chlorides from seawater for XS1, XS2 and XS3. The table includes abstracts from informative examples applicable in the UK from BS 8500-1 and descriptions from the maritime Standard BS 6349-1-4. This comparison is indicative of the

Get Price

Table 1A - Classes of Concrete - New Hampshire

Table 1A - Classes of Concrete Concrete Class Minimum Expected 28 Day Compressive Strength1 Maximum Water/Cement Ratio2 Entrained Air Percent Permeability Target Value6 PSI (Mpa) Coulombs AAA3 AAA 5,000 (35) 5,000 (35) 0.400 0.444 5 to 9 5 to 9 2000 AA3 4,000 (30) 0.400 5 to 9 2000 AA 4,000 (30) 0.444 5 to 9 2000 A 3,000 (20) 0.464 4 to 7 4000 B 3,000 (20) 0.488 3 to 6 T 3,000 (20)

Get Price

Specification - Concrete Structures Eurocode - Eurocode ...

14/07/2021  The term 'workability' has been replaced by the term 'consistence' and a series of consistence classes has been introduced. Table 9 gives the slump and flow classes and the likely target slump/flow. Chloride Class. Concrete that is to be prestressed, pre-tensioned or heat cured should normally be specified as chloride class Cl0,10. Reinforced concrete should be specified as class

Get Price

NHBC Standards 2011

This is equivalent to Exposure Class XC4 above. Tables 2a, 2b and 2c - Site-mixed concrete for Standardised Prescribed Mixes Table 2a - Mix proportions by weight. This table applies to cement strength class 32.5 and 20mm maximum aggregate size. Where cement strength class 42.5 or higher is used the cement weight should be decreased by 10%.

Get Price

SERIES 600 EARTHWORKS - Standards for Highways

requirements of Table 6/1 and contract specific Appendix 6/1 for acceptability for use in the permanent works; (ii) unacceptable material Class U1A as defined in sub-Clauses 2(i)(a) and 2(i)(b) of this Clause: material excavated from within the site which, unless processed so that it meets the requirements of Table

Get Price

Part D: Specifying concrete for general cast-in-situ use

From Table D1, determine the appropriate DC Class of concrete: - For the assessed ACEC Class, look in the column corresponding to the required Intended Working Life, taking account of Notes d e; - Adjust DC Class or Number of APM up or down to take account of (i) thickness of concrete section - see Notes b c; (ii) hydrostatic pressure if this exceeds 5 x section thickness - see Note a From ...

Get Price

Guide to Formed Concrete Surfaces

CHAPTER 3—FORMED CONCRETE SURFACE DESCRIPTIONS 3.1—General Tables 3.1a through 3.1d define the various measurable properties pertaining to formed concrete surface texture, surface void ratio, color, flatness, and joints. Four concrete surface categories (CSCs) are defined in Table 3.1a

Get Price

Table of concrete design properties (fcd, fctm, Ecm, fctd ...

01/01/1992  The characteristic compressive strength f ck is the first value in the concrete class designation, e.g. 30 MPa for C30/37 concrete. The value corresponds to the characteristic (5% fractile) cylinder strength according to EN 206-1. The strength classes of EN1992-1-1 are based on the characteristic strength classes

Get Price

SERIES 1700 STRUCTURAL CONCRETE

4 (12/14) The chloride content class shall conform to the following requirements: TABLE 17/1: (12/14) Chloride content classes Type or use of concrete Chloride content class Maximum total chloride content expressed as % of chloride ion by mass of cement (inclusive of ggbs or fly ash when these are used as cement) Prestressed concrete, heat-cured

Get Price

Types of Ready-mixed Concrete Hanson UK

Foundation concrete for use in sulfate containing soils to DC2-DC4 (design chemical class) FND2 – (DC-2 Soils) All types of unreinforced foundations. Concrete strength: 30N/mm2 at 28 days. FND3 – (DC-3 Soils) All types of unreinforced foundations. Concrete strength: 30N/mm2 at 28 days. FND4 – (DC-4 Soils) All types of unreinforced foundations

Get Price

NHBC Standards 2006

Concrete placed in ACEC Classes which include the suffix z have primarily to resist acid conditions and may be made with cements from any of the Groups in Table 3 of Part 2 of BRE Special Digest 1. This table is based on Table 2 of Part 1 of BRE Special Digest 1. Table 4b - Design guide for concrete elements in the ground

Get Price

Eurocode 2: Design of concrete structures EN1992-1-1

Concrete strength classes and properties. 22 February 2008 11 Design Strength Values (3.1.6) • Design compressive strength, f cd f cd = α cc f ck /γ c • Design tensile strength, f ctd f ctd = α ct f ctk,0.05 /γ c α cc (= 1,0) and α ct (= 1,0) are coefficients to take account of long term effects on the compressive and tensile strengths and of unfavourable effects resulting from the ...

Get Price

Part C: Assessing the aggressive chemical environment

Concrete classification (Table C1) for some types of groundwater. SD1:2005 Part C - Draft 1 v8: 14/12/04 2 Steps of procedure 1. Carry out Desk Study and Walk Over of site to identify type of site, eg Brownfield, and any ground conditions which may be aggressive to concrete Refer to Special Digest Sections C4.2 and C4.3 2. Carry out Ground Investigation to determine: a) Groundwater mobility ...

Get Price

Part D: Specifying concrete for general cast-in-situ use

From Table D1, determine the appropriate DC Class of concrete: - For the assessed ACEC Class, look in the column corresponding to the required Intended Working Life, taking account of Notes d e; - Adjust DC Class or Number of APM up or down to take account of (i) thickness of concrete section - see Notes b c; (ii) hydrostatic pressure if this exceeds 5 x section thickness - see Note a From ...

Get Price

Specifying Sustainable Concrete to BS 8500

BS 8500-2: 2015 (Table 5) Designated Concrete Designed Concretes • Permits flexibility • Suitable for most applications • Strength, allowable cement types; water/cement ratios; use of recycled or secondary a ggregates are specified . 12 Designed Concrete Basic Specification Requirements • Strength class • Max. W/C ratio • Cement type and min. content • Max. aggregate size ...

Get Price

What is the difference between the grade and the class of ...

23 Types of Concrete and Their Applications (Classes) Different types of concrete are: 1. Normal Strength Concrete 2. Plain or Ordinary Concrete 3. Reinforced Concrete 4. Prestressed Concrete 5. Precast Concrete 6. Light – Weight Concrete 7. High-...

Get Price

Types of Concrete Mix Ratio Design and their Strengths ...

Types of Concrete Mix Ratio - Mix Designs Nominal Concrete Mix Ratios In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes. Nominal mixes offer simplicity and under normal circumstances, have a margin of strength above that specified ...

Get Price

Table of concrete design properties (fcd, fctm, Ecm, fctd ...

01/01/1992  The characteristic compressive strength f ck is the first value in the concrete class designation, e.g. 30 MPa for C30/37 concrete. The value corresponds to the characteristic (5% fractile) cylinder strength according to EN 206-1. The strength classes of EN1992-1-1 are based on the characteristic strength classes

Get Price

SERIES 1700 STRUCTURAL CONCRETE

4 (12/14) The chloride content class shall conform to the following requirements: TABLE 17/1: (12/14) Chloride content classes Type or use of concrete Chloride content class Maximum total chloride content expressed as % of chloride ion by mass of cement (inclusive of ggbs or fly ash when these are used as cement) Prestressed concrete, heat-cured

Get Price

NHBC Standards 2006

Concrete placed in ACEC Classes which include the suffix z have primarily to resist acid conditions and may be made with cements from any of the Groups in Table 3 of Part 2 of BRE Special Digest 1. This table is based on Table 2 of Part 1 of BRE Special Digest 1. Table 4b - Design guide for concrete elements in the ground

Get Price

Different Types of Concrete Grades and their uses Base ...

Different types of concrete grades and their uses. Whether you are looking for the right domestic or commercial concrete mix for your construction job, or are just curious about the different grades of concrete and would like to know more, read on to get an understanding of these different types of concrete and their uses, or get in contact today by calling us on 01442 389105

Get Price

Part C: Assessing the aggressive chemical environment

Concrete classification (Table C1) for some types of groundwater. SD1:2005 Part C - Draft 1 v8: 14/12/04 2 Steps of procedure 1. Carry out Desk Study and Walk Over of site to identify type of site, eg Brownfield, and any ground conditions which may be aggressive to concrete Refer to Special Digest Sections C4.2 and C4.3 2. Carry out Ground Investigation to determine: a) Groundwater mobility ...

Get Price

Specifying Sustainable Concrete to BS 8500

BS 8500-2: 2015 (Table 5) Designated Concrete Designed Concretes • Permits flexibility • Suitable for most applications • Strength, allowable cement types; water/cement ratios; use of recycled or secondary a ggregates are specified . 12 Designed Concrete Basic Specification Requirements • Strength class • Max. W/C ratio • Cement type and min. content • Max. aggregate size ...

Get Price

EN 1992-1-1: Eurocode 2: Design of concrete structures ...

EN 1992-1-1 (2004) (English): Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings [Authority: The European Union Per Regulation 305/2011, Directive 98/34/EC, Directive 2004/18/EC] EUROPEAN STANDARD NORME EUROPEENNE EUROpAISCHE NORM ICS 91.010.30; 91.080.40 EN 1992-1-1 December 2004 Incorporating corrigenda January 2008 and

Get Price

23 Types of Concrete Used in Construction and their ...

🕑 Reading time: 1 minuteDifferent types of concrete are produced based on the constituent material, mix design, the method of construction, area of application, form of hydration reaction. Details of these various types of concrete, their properties and applications are discussed. Contents:23 Types of Concrete and Their Applications1. Normal Strength Concrete2. Plain Concrete3. Reinforced ...

Get Price

Types of Concrete Mix Ratio Design and their Strengths ...

Types of Concrete Mix Ratio - Mix Designs Nominal Concrete Mix Ratios In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes. Nominal mixes offer simplicity and under normal circumstances, have a margin of strength above that specified ...

Get Price

Geotechnical Specification Appendix 1 Appendix 6

(v) Cohesive Fill shall be Class 2A1 to meet the minimum end specification requirements in addition to the requirements of clauses 608, 609, 612 (of Series 600 specifications for earthworks) and Table 6/1. Class 2A1 material is to be placed using End-Product Compaction techniques (see Table

Get Price