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NYC Building Code

§ 2510.7 — § 2510.7

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What is NYC BC § 2510.7?

Quick Answer

This section outlines the requirements for preparing masonry and concrete surfaces to ensure proper bonding. It specifies that surfaces must be clean, damp, and rough, and details the use of bonding agents or a dash bond coat if necessary. Applies to building owners involved in masonry and concrete work.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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2510.7 Preparation of masonry and concrete.

BC § 2510.7

Surfaces shall be clean, free from efflorescence, sufficiently damp and rough for proper bond. If the surface is insufficiently rough, approved bonding agents or a portland cement dash bond coat mixed in proportions of not more than two parts volume of sand to one part volume of portland cement or plastic cement shall be applied. The dash bond coat shall be left undisturbed and shall be moist cured not less than 24 hours.

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