Subpart And Construction Concrete Masonry Safety Training
Are your employees engaged in cast-in-place concrete operations?
If a trainer is instructing on a particular topic, the guides streamline the process by providing only the needed regulations. Definitions applicable to this subpart. Print chapters, sections, and subsections for frequently used code. Requirements for cast-in-place concrete. Requirements for lift-slab construction operations. Requirements for masonry construction. This information will be made available to sensory impaired individuals upon request. Prevent employees from working in an area where they may fall into or onto unprotected rebar. Rebar can be capped with special protective rebar covers to keep employees from being impaled. What are some of the effective control measures that can be used to eliminate the hazard of being in the danger zone to protect employees from being stuck by flying brick and block in the event of a wall collapse?
Until the wall has gained sufficient strength that overturning (collapse) is no longer a hazard, keep employees out of the area where the wall is being constructed unless they are actually engaged in constructing the wall.
The zone should be equal to the length of the wall under construction and extend out a distance equal to the height of the wall to be constructed plus 4 feet.
www.youtube.com/watch?v=zdYHn4Si7tI OSHA Concrete and Masonry Construction – Subpart Concrete And Masonry Construction
Most accidents are caused by the uncontrolled release of hazardous energy. There are different models in concrete plants available and you can choose one as per the requirement of your construction project. This production process is performed on ground level, which gives safety throughout a project. Aerated concrete blocks can be created with an easier procedure. Requirements for cast-in-place concrete. Appendix to this section will be deemed to meet the requirements of this paragraph. Erected shoring equipment shall be inspected immediately prior to, during, and immediately after concrete placement. The sills for shoring shall be sound, rigid, and capable of carrying the maximum intended load. Reinforcing steel for walls, piers, columns, and similar vertical structures shall be adequately supported to prevent overturning and to prevent collapse. Employers shall take measures to prevent unrolled wire mesh from recoiling. Reshoring shall not be removed until the concrete being supported has attained adequate strength to support its weight and all loads in place upon it.
Requirements for masonry construction. A limited access zone shall be established whenever a masonry wall is being constructed. The limited access zone shall be established prior to the start of construction of the wall. The limited access zone shall be equal to the height of the wall to reconstructed plus four feet, and shall run the entire length of the wall.
The limited access zone shall be established on the side of the wall which will be unscaffolded. The limited access zone shall be restricted to entry by employees actively engaged in constructing the wall. The limited access zone shall remain in place until the wall is adequately supported to prevent overturning and to prevent collapse unless the height of wall is over eight feet, in which case, the limited access zone shall remain in place until the requirements of paragraph (b) of this section have been met.
All masonry walls over eight feet in height shall be adequately braced to prevent overturning and to prevent collapse unless the wall is adequately supported so that it will not overturn or collapse.
Limited access zone means an area alongside a masonry wall, which is under construction, and which is clearly demarcated to limit access by employees. All protruding reinforcing steel, onto and into which employees could fall, shall be guarded to eliminate the hazard of impalement. No employee (except those essential to the post-tensioning operations) shall be permitted to be behind the jack during tensioning operations. No employee shall be permitted to ride concrete buckets. Mechanical or pneumatic means of starting the flow of material.
Guardrails installed on each side of the skip. Concrete buggy handles shall not extend beyond the wheels on either side of the buggy. Concrete buckets equipped with hydraulic or pneumatic gates shall have positive safety latches or similar safety devices installed to prevent premature or accidental dumping.
Sections of tremies and similar concrete conveyances shall be secured with wire rope (or equivalent materials) in addition to the regular couplings or connections. Masonry saw shall be guarded with a semicircular enclosure over the blade. Appendix to this section will be deemed to meet the requirements of this paragraph. Erected shoring equipment shall be inspected immediately prior to, during, and immediately after concrete placement. The sills for shoring shall be sound, rigid, and capable of carrying the maximum intended load. The single post shores shall be spliced to prevent misalignment. The single post shores shall be a adequately braced in two mutually perpendicular directions at the splice level. Adjustment of single post shores to raise formwork shall not be made after the placement of concrete. Reshoring shall be erected, as the original forms and shores are removed, whenever the concrete is required to support loads in excess of its capacity.
Adequately braced where not encased in concrete. All vertical slip forms shall be provided with scaffolds or work platforms where employees are required to work or pass. Jacks and vertical supports shall be positioned in such a manner that the loads do not exceed the rated capacity of the jacks. The jacks or other lifting devices shall be provided with mechanical dogs or other automatic holding devices to support the slip forms whenever failure of the power supply or lifting mechanism occurs.
The predetermined safe rate of lift shall not be exceeded. Reinforcing steel for walls, piers, columns, and similar vertical structures shall be adequately supported to prevent overturning and to prevent collapse. The evidence in the record for this rulemaking indicates that workers exposed to respirable crystalline silica are at increased risk of developing silicosis and other non-malignant respiratory diseases, lung cancer, and kidney disease.
This document corrects errors in the preamble and regulatory text of the final rule. The final rule removes the requirement for employees to wear protective footwear as protection against electric shock. March 19, 2014, in the presence of the peer reviewers. Hearing testimony and documentary evidence. Jacks and vertical supports must be positioned in such a manner that the loads do not exceed the rated capacity of the jacks. All vertical slip forms must be provided with scaffolds or work platforms where employees are required to work or pass. Such measures may include, but are not limited to, securing each end of the roll or turning over the roll. Reshoring must not be removed until the concrete being supported has attained adequate strength to support its weight and all loads placed upon it.
Lifting hardware shall be capable of supporting at least five times the maximum intended load applied or transmitted to the lifting hardware. Jacking equipment must be marked with the manufacturer’s rated capacity and must be capable of supporting at least two and one-half times the load being lifted during jacking operations and the equipment must not be overloaded.
No employee, except those essential to the jacking operation, shall be permitted in the building/structure while any jacking operation is taking place unless the building/structure has been reinforced sufficiently to ensure its integrity during erection.
Under no circumstances shall any employee who is not essential to the jacking operation be permitted immediately beneath a slab while it is being lifted.
Act, must adopt standards and enforce requirements that are “at least as effective” as federal requirements.
Understanding Concrete, Cement, And Mortar