Concrete Pavings Method Statement

1. SCOPE

The scope of this procedure covers the control of the installation of in-site concrete paving surfaces including finishes to ensure compliance with the contract specifications.

2. PROCEDURE

1-All activities connected with concrete paving will be carried out according to the contract specifications. In any circumstances where specifications are not provided or are unclear, clarification will be requested from the consultant’s representative.

2-Where necessary a method statement shall be prepared and approved by the project director/manager. It shall include:

The agreed tolerance on level and surface regularity.
Site protection and safety.
Mix design details for wearing surfaces.
Method of placing, compacting, and finishing concrete.
Method of curing.

3. Source certificates of basic constituents of concrete are to be obtained from the supplier to verify compliance with the specifications.

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4. Ensure that the proposed sequence of work is commenced in compliance with the contract program.

While framing the construction schedule, additional allowance shall be made for the following:

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Laying underfloor services.
Curing and drying of the base concrete before the flooring is laid.
Curing of the flooring,
Period of protection of the completed floor from damage by other trades, including restriction of access.

5-Special care while laying concrete finishes and wearing surfaces:

Where a structural concrete slab itself forms the flooring or where a topping is laid monolithically or bonded to a hardened base, the wearing surface shall be sufficiently protected against damage during successive building operations.
In hot or drying conditions, care shall be taken that the concrete mixes do not stiffen or dry out to an extent that prevents full compaction.
After compaction and finishing, the surface shall not be allowed to dry out quickly and this may be achieved by protection by plastic sheeting or other suitable means. In addition, where concrete is laid in open locations, its surface shall be protected from the effects of the sun and wind to limit the risk of cracking.
Compaction of concrete shall be carried out in such a way that an excess of `laitance’ is not brought to the surface.

For the highest abrasion resistance, the final trowelling shall be made when considerable pressure is required to make any impression on the surface. However, excessive trowelling should be avoided to prevent the production of a polished or slippery finish. Water shall not be applied between trowelling operations as this may cause surface weakness.

Curing shall be done as specified.
When the topping is laid separately and bonded, the surface of the base shall be carefully prepared as specified to ensure a proper bond between the topping and the base concrete.

You may be interested in many of the Method Statements:

1. Method statement for interlocking block and curb stone

2. Method Statement for Marble Stone Installation

3. Block Work Method of Statement

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