DIN 18314-2016 German construction contract procedures (VOB) - Part C General technical specifications in construction contracts (ATV) - Sprayed concrete works《德国建筑包工合同程序 (VOB) 第C部.pdf

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7、 t h o r i t a t i v e .11.16 DIN 18314:2016-09 2 A comma is used as the decimal marker. Foreword This document has been prepared by the Deutscher Vergabe- und Vertragsausschuss fr Bauleistungen (DVA) (German Committee for Construction Contract Procedures). Amendments This document differs from DIN

8、18314:2015-08 as follows: a) the document has been editorially revised; b) the references to VOB/A have been updated; c) the normative references have been updated as of 2016-04. Previous editions DIN 18314: 1984-09, 1988-09, 1992-12, 1996-06, 2000-12, 2002-12, 2006-10, 2010-04, 2012-09, 2015-08 Nor

9、mative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments

10、) applies. DIN 1045-2:2008-08, Concrete, reinforced and prestressed concrete structures Part 2: Concrete Specification, performance, production and conformity Application rules for DIN EN 206-1 DIN 1045-3, Concrete, reinforced and prestressed concrete structures Part 3: Execution of structures Appli

11、cation rules for DIN EN 13670 DIN 1960, German construction contract procedures (VOB) Part A: General provisions relating to the award of construction contracts DIN 1961, German construction contract procedures (VOB) Part B: General conditions of contract relating to the execution of construction wo

12、rk DIN 18202, Tolerances in building construction Buildings DIN 18299, German construction contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) General rules applying to all types of construction work DIN 18312, German construction contract procedures (V

13、OB) Part C: General technical specifications in construction contracts (ATV) Underground construction work DIN 18349, German construction contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) Repair work on concrete structures DIN 18350, German constructi

14、on contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) Plastering and rendering DIN 18551, Sprayed concrete National application rules for series DIN EN 14487 and rules for design of sprayed concrete constructions DIN 18314:2016-09 3 DIN EN 206-1:2001-0

15、7, Concrete Part 1: Specification, performance, production and conformity DIN EN 934 (all parts), Admixtures for concrete, mortar and grout DIN EN 13670, Execution of concrete structures DIN EN 14487 (all parts), Sprayed concreteDIN 18314:2016-09 4 Contents Page 0 Details required for drafting the s

16、pecification of works . 4 1 Scope 7 2 Materials and components . 7 3 Execution of work 7 4 Associated tasks and special tasks 8 5 Settlement of accounts 10 0 Details required for drafting the specification of works The following information supplements the general information specified in DIN 18299,

17、 clause 0. Without this information, a specification of works as required in 7 ff., 7 EU ff. or 7 VS ff. of VOB/A (DIN 1960) cannot be properly drawn up. This information does not form part of the contract. The specification of works shall, in particular, include the following information as and whe

18、n applicable. 0.1 Site information 0.1.1 Type, properties and condition of background (e.g. strength, weathering and frost resistance, any dirt or contamination). 0.1.2 Type and extent of ingress of water or moisture penetration from rear. 0.1.3 Depth and types of foundation of and constructional de

19、tails of, and loads from, neighbouring structures. 0.1.4 Form of excavations. 0.1.5 Number, type, design, dimensions and location of elements to which concrete is to be applied (e.g. constructional details, geometry). DIN 18314:2016-09 5 0.1.6 Type, constructional details, dimensions and location of

20、 any scaffolding installed by other contractors, and schedule for the installation or removal of such scaffolding. 0.1.7 Availability of any machinery and equipment required on-site (e.g. supply and disposal equipment, ventilation and dust extraction equipment). 0.1.8 Details of dewatering, high-tid

21、e and low-tide levels, and probability of occurrence. 0.2 Details of execution of work 0.2.1 Number, type, constructional details, dimensions and location of sprayed concrete components to be made. 0.2.2 Any surface preparation required (e.g. sand blasting, water blast cleaning (indicating pressures

22、 and flow rates), mortising and chiselling). 0.2.3 Requirements regarding the background when concrete is to be bonded to it (i.e. bond strength and tensile strength). 0.2.4 Preparing the background when concrete is to be floating (e.g. when applied on the ground, on timber, plastics or steel). 0.2.

23、5 Spraying technique (e.g. wet or dry), type and properties of concrete and of components made from it (e.g. exposure class, compressive strength, early strength, maximum particle size of aggregate, water permeability, leachability). 0.2.6 Any use of admixtures or additions. 0.2.7 Any use of fibre r

24、einforcement. 0.2.8 Information whether formwork is to be used. 0.2.9 Type of formwork to be used, any inserts or formliners to be integrated in the formwork (e.g. to give surfaces a certain texture or profile). 0.2.10 Any spraying in of, for instance, reinforcement, support arches or inserts. 0.2.1

25、1 Types and dimensions of reinforcement and percentage of reinforcement. Any special requirements regarding the dimensions, location, number of ties, laps, welded or threaded joints, etc. for the reinforcement, or spacers. 0.2.12 Required concrete cover to reinforcement (e.g. when structure is expos

26、ed to varying degrees of moisture penetration or mechanical attack). 0.2.13 Any requirements for surface texture, flatness and accuracy to size, and permitted tolerances. 0.2.14 Type, location, size, number, form and mass of inserts or formliners (existing or to be installed). 0.2.15 Type, location,

27、 size and number of openings or recesses to be made or closed. 0.2.16 Types, design, position, dimensions and number of joints (structural and movement joints, joints between components, etc.). DIN 18314:2016-09 6 0.2.17 Number, type, dimensions and design of edgings and connections to/junctions wit

28、h adjacent building elements. 0.2.18 Curing requirements. 0.2.19 Directions on the collection, separation and disposal of excavated material and rubble mixed with rebound. 0.2.20 Plant requirements for supply and disposal, ventilation, dust removal and extraction, taking local conditions into accoun

29、t. 0.2.21 Ventilation measures to comply with occupational health and safety requirements, depending on the spraying method selected (see subclause 0.2.5). 0.2.22 Any special precautions to protect persons (e.g. persons living nearby, workers from other companies), building components and equipment

30、(e.g. windows, railings and balustrades, technical equipment). 0.3 Details not included in the specifications of this standard 0.3.1 If specifications are to be made that are not included in the specifications of this standard, they shall be described separately and clearly in the specification of w

31、orks. 0.3.2 Such specifications may be of particular relevance in: subclause 3.1.3, if details of the composition, mixing method, working and curing of the sprayed concrete/masonry are to be specified, subclause 3.1.4, if the agreed thicknesses of concrete or mortar cover are not to be minimum value

32、s, subclause 3.2, if the surface of the concrete or mortar is to be finished after spraying and after removal of formwork. 0.4 Details of associated tasks and special tasks The following are especially likely to require separate itemization in accordance with DIN 18299, subclause 0.4.1: curing fresh

33、ly sprayed concrete or mortar to protect it against adverse weather and drying out (see subclause 4.1.5). 0.5 Accounting of works In the specification of works, accounting of works shall be based on the following units, accounted for separately according to type and dimensions: sprayed concrete/mort

34、ar: by volume (m3), area (m2), length (m) or mass (t), formwork: by area (m2), formwork at edges of beams or columns: by length (m), reinforcement: by mass (kg, t), sprayed concrete components: by number, making of recesses (e.g. openings, niches, cavities, chases, ducts): by number, ties: by number

35、, DIN 18314:2016-09 7 erection, moving and removal of service, ventilation and dust extraction equipment: by number, provision of service, ventilation and dust extraction equipment: according to length of time (day, week, month), operation of service, ventilation and dust extraction equipment: accor

36、ding to length of time (h). 1 Scope 1.1 This standard deals with the production and working of plain and reinforced concrete and mortar, which are applied by spraying and compacting in one operation. 1.2 This standard does not cover: the preservation and repair of structures and components made of p

37、lain or reinforced concrete (see DIN 18349), the application of plaster by spraying (see DIN 18350). 1.3 DIN 18299, clauses 1 to 5 also apply. In cases where the specifications of DIN 18299 contradict the present standard, DIN 18314 shall take precedence. 2 Materials and components The specification

38、s of DIN 18299, clause 2 shall be supplemented as follows: The following DIN Standards cover the most commonly used standardized materials and components: DIN 1045-2:2008-08 DIN 18551 DIN EN 206-1:2001-07 DIN EN 934 (all parts) DIN EN 14487 (all parts) 3 Execution of work The specifications of DIN 1

39、8299, clause 3 shall be supplemented as follows: 3.1 General 3.1.1 DIN 18551, DIN EN 14487 (all parts), DIN 1045-3 and DIN EN 13670 shall apply for the execution of sprayed concrete work. 3.1.2 Reservations according to VOB/B (DIN 1961), 4, clause 3 could involve in particular the following: the con

40、dition of the background if this is inadequate, any circumstances likely to impair the adhesion, hardening or quality of the concrete. DIN 18314:2016-09 8 3.1.3 It shall be at the contractors discretion to select the composition of the concrete/mortar, and the mixing, working and curing methods, so

41、as to ensure compliance with the quality requirements. 3.1.4 The specified thicknesses are minimum values above the substrate profile. 3.1.5 If the design level of the surface is specified, the level shall deviate by not more than 5 cm. Work to counteract the difference between the thickness of cove

42、r and the design level of the surface counts as a special task (see subclause 4.2.1). 3.1.6 For work in accordance with DIN 18312, the tolerances specified there apply. 3.1.7 For the purposes of formed sprayed components, the tolerances specified in DIN 18202 apply. 3.2 Surface finish The surface of

43、 the concrete shall be left unfinished after spraying or removal of formwork. 4 Associated tasks and special tasks 4.1 In addition to those specified in DIN 18299, subclause 4.1, in particular the following also count as associated tasks: 4.1.1 Establishing the condition of roads, of the ground surf

44、ace, of receiving waters, etc., in accordance with VOB/B (DIN 1961), 3, clause 4. 4.1.2 Work relating to the quality control of raw materials, components and compliance of the sprayed concrete, as specified in DIN 18551 and DIN EN 14487 (all parts). 4.1.3 Erection, reassembly, dismantling and provis

45、ion of scaffolding for the contractors own use provided the surface worked on is not more than 3,5 m above the scaffolding base necessary for the work. 4.1.4 Levelling of stepped or inclined scaffolding bases with a difference in height of 40 cm (e.g. above stairs or ramps). 4.1.5 Curing freshly app

46、lied concrete to protect it against inclement weather and against drying-out, except for work specified in subclause 4.2.7. 4.1.6 Collection and disposal of rebound not mixed in with excavated material or rubble. DIN 18314:2016-09 9 4.2 In addition to those specified in DIN 18299, subclause 4.2, the

47、 following also count as special tasks: 4.2.1 The special tasks specified in subclause 3.1.5. 4.2.2 Work to protect components, equipment and persons (e.g. erection of protective walls, enclosures, barriers). 4.2.3 Provision, erection, reassembly on same site and dismantling of scaffolding for the p

48、urposes of other contractors. 4.2.4 Erection, reassembly, dismantling and provision of scaffolding for the contractors own use provided the surface worked on is more than 3,5 m above the base of the scaffolding necessary for the work. 4.2.5 Erection, reassembly, dismantling and provision of scaffolding with stepped or inclined bases (e.g. above stairs or ramps), if the levelling distance is more than 40 cm. 4.2.6 Soil and water investigations. 4.2.7 Precautionary and protective measures to protect the freshly placed concrete against chemical attack, shock, vibration, etc., and against i