7/17/2019 FKS-HC092-CFW-001 Rev a Final Concrete From Work

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JO/HC092/FE09

WAFRA TRUNKLINES REPLACEMENT

Doc. No. FKS/HC092-CFW-001

Rev A

CONCRETE FORMWORKS P!"e Page 1 of 4

TA#LE OF CONTENTS

1.0 PURPOSE

2.0 SCOPE

$.0 CODES AND STANDARDS

%.0 PROJECT SPECIFICATION

&.0 RELATED WORKS

'.0 MATERIALS

(.0 PROCEDURES

7/17/2019 FKS-HC092-CFW-001 Rev a Final Concrete From Work

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JO/HC092/FE09

WAFRA TRUNKLINES REPLACEMENT

Doc. No. FKS/HC092-CFW-001

Rev A

CONCRETE FORMWORKS P!"e Page 2 of 4

1.0 PURPOSE

1.1 The purpose of this procedure is to define and ensure a quality procedure and to

settle minimum requirements for civil concrete work related to pipeline

construction.

2.0 SCOPE

2.1 This work procedure describes the supply for W!" T"#$%& '($)

")P'%)*)$T %ontract $o. +,-%/02-!)/0 which covers the general

requirement for materials preparations operation and testing inspection related tothe construction of reinforced concrete structures and structural items for pipeline

works fabrication transporting to site and erection fi3ing and securing of the forms

in position to all concrete whether plain or reinforced concrete.

$.0 CODES AND STANDARDS

.1 56 711/ Part (8 96tructural use of concrete: %ode of practice for design and

construction

&,%;%;//< &,%

standard for concrete work materials and constructions.

%.0 PROJECT SPECIFICATION

4.1 "efer to %ontract 6pecifications

&.0 RELATED WORKS

=.1 )arthworks

=.2 %oncrete %asting

=. %oncrete "einforcement

'.0 MATERIALS

<.1 Phenol coated 12mm minimum as per &,% slid 17mm to 2/mm thick plywood

sheet for e3terior and e3posed surfaces

<.2 12mm>min? 17mm to 2/mm thick commercial plywood for interior and une3posed

surfaces

7/17/2019 FKS-HC092-CFW-001 Rev a Final Concrete From Work

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JO/HC092/FE09

WAFRA TRUNKLINES REPLACEMENT

Doc. No. FKS/HC092-CFW-001

Rev A

CONCRETE FORMWORKS P!"e Page of 4

<. "easonable quality of timber planks runners and steel pipes conforming standardsetc. for staging and supporting

<.4 *ould oil for treatment of surfaces of forms.

<.= %onsumable and rough hardware such as nails bolts screw and anchors carpenter@s

tape etcA

(.0 PROCEDURE

B.16upply design erect strike and remove the formwork as per standards daily approved

 by company which shall be entirely done by the contractor responsible for the

stability and safety to carry the wet concentrate and all the incidental loadings and

 preserve it from damage and distortion during concrete placing vibration ramming

setting and curing.

B.2!abrication of formworks shall follow the approved dimensions in the drawing so as to

leave the concrete to its desired measurements and materials shall be capable of 

 providing the surface finish specified.

B.%onstruction of formworks shall be water tight to prevent loss of any liquid from the

wet concrete. (t should also be removable preventing shock to the partially set

concrete during striking. When the concrete is to be vibrated all wedges should be

nailed so as to prevent slipping or distortion.

B.4%ommercial plywood shall be used for concrete works for underground une3posed

 plastered surfaces. Phenol coated plywood shall be used for concrete works for 

superstructure and e3posed surfaces with fair faced finish. !air faced concrete can

 be achieved by close supervision at the time of casting concrete and tamping the

forms with wooden or rubber hammer.

B.= Plywood as form requires wood frames and ribs. The resisting capability of the form

depends upon the manner how it is supported by a framework called scaffolding and

staging. (n securing forms by means of common wire nails dismantling or removal

of form must be anticipated. (n the assembly of forms nails should not be driven

totally.

B.< ll formworks should be thoroughly cleaned of any old concrete or any other 

deposits. fter the forms are thoroughly cleaned water shall be hosed down and

temporary openings shall be provided to permit the escape of sawdust shavings binding wire trims etc...

7/17/2019 FKS-HC092-CFW-001 Rev a Final Concrete From Work

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JO/HC092/FE09

WAFRA TRUNKLINES REPLACEMENT

Doc. No. FKS/HC092-CFW-001

Rev A

CONCRETE FORMWORKS P!"e Page 4 of 4

B.B Prior to placing of reinforcement the internal surface of all formworks shall betreated with approve mould oil for greasing of forms. thin film of mould oil shall

 be applied. %are shall be taken that the reinforcement does not become

contaminated with mould oil. This is done to make the wood waterproof thus

 preventing the absorption of water in the concrete which causes swelling and

warping of the forms. %oncrete shall not be place in any formwork has been

inspected and approved by the client.

B.7 The minimum period before striking formwork and centering shall be as follows

B.7.1 !ootings ring beams sides ; 2days

B.7.2 %olumn necks ; 2 days

B.7. 5eams sides ; 2 days

B.7.4 5eams soffits ; 14 days

B.0 The forms shall be removed without damage to the concrete. "emoval of forms shall

 be done in such a manner as to ensure the complete safety of the structure. ny work showing signs of damage through premature is to be entirely reconstructed at

contractor@s cost.

B.1/ )3pansion and construction Coints shall be formed in the positions indicated and to

the details as shown on the drawings. %onstruction Coints shall be formed at right

angles to the a3is of the member concerned. The Coints shall be formed by the

insertion of rigid stop forms with stud dowels.

B.11 %ontractor shall form chamfers to the required siDes with preformed plastic fillets or 

wrought hardwood fillet and planted in the angles of the formwork wherever shown

in the drawings.

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