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https://www.wcirb.com/class-search/concrete-or-cement-work-pouring-or-finishing-concrete-floor-slabs-does-not-equal-or
CONCRETE OR CEMENT WORK — pouring or finishing of concrete floor slabs, poured in place and on the ground, and concrete slab-type foundations, for other than concrete buildings or structural steel buildings of multi-story construction — including the making or stripping of forms — employees whose regular hourly wage does not equal or exceed $28.00 per hour
https://webapps.bart.gov/bfs/bfs_3_0_spec/stdspec/03%2035%2000.pdf
CONCRETE FINISHING PART 1 - GENERAL 1.01 SECTION INCLUDES A. Repair of surface defects B. Finishing of formed surfaces C. Slabs and flatwork D. Curing 1.02 RELATED SECTIONS A. Concrete formwork is specified in Section 03 11 00 - Concrete Forming. B. Cast-in-place concrete is specified in Section 03 30 00 - Cast-In-Place Concrete.
https://www.concreteconstruction.net/_view-object?id=00000153-8b55-dbf3-a177-9f7dbe320000
uch has been said about concrete and its wide range of usage in the construction field, but all too little has been said of the cost of labor for the installa- ... One Ge n e r al Fo re m a n 2 hours @ $3.94—$ 7.88 One Fo r eman 8 hours @ $3.69—$ 29.52 Fi v e Carpenters 8 hours @ $3.44—$137.60
https://www.designingbuildings.co.uk/wiki/What_hours_are_construction_sites_allowed_to_operate%3F
Typical restrictions might be: Monday to Friday: 8am to 6pm. Saturdays: 8am to 1pm. Sundays and bank holidays: No work permitted, or noisy work prohibited. Examples of activities that might be prohibited outside of these hours could include: The use of hammers and …
https://www.concrete.org/certification/certificationprograms.aspx?m=details&pgm=Concrete%20Flatwork%20Finishing&cert=Concrete%20Flatwork%20Associate,%20Finisher,%20and%20Advanced%20Finisher
Definition: A Concrete Flatwork Associate (formerly Concrete Flatwork Technician) is a person who has demonstrated knowledge (via a written examination) on proper procedures to place, consolidate, finish, edge, joint, cure and protect concrete flatwork.. A Concrete Flatwork Finisher (formerly Concrete Flatwork Tradesman) is a craftsman who has demonstrated the skills (via a hands-on ...
https://www.penndot.gov/ProjectAndPrograms/Construction/QAW/2018_QAW_Presentations/Concrete/Codes%20and%20Standards%20Requirements%20for%20Acceptance%20Testing.pdf
Initial curing for 24 hours - Within limits of ASTM C31 Condition Relative Strength (28-day) Cement A Cement B 60°F in water 100% (6080 psi) 100% (6090 psi) 60°F in air 92% 97% 80°F in water 89% 93% 80°F in air 81% 88% NRMCA study: Meininger, ASTM Cement Concrete & Aggregates, 1983 Average Effect: Water vs. Air +6.6% 60°F vs. 80°F +9.2%
https://www.osha.gov/laws-regs/standardinterpretations/2019-07-25
Examples of such tasks include finishing and hand wiping block walls to remove excess wet mortar, pouring concrete, and grouting floor and wall tiles. Employers should be aware that tasks like mixing mortar or concrete can foreseeably result in exposures at or above the RCS AL, depending on factors such as the duration the task is performed ...
https://eng2.lacity.org/techdocs/permits/standspecs.pdf
Measurement of Concrete Materials: Transit Mixed Concrete is acceptable on all permit work, provided that Class 520-C-2500 concrete is furnished from an approved bunker. Each delivery transmit mixed concrete shall be accompanied by a delivery ticket, setting forth the weights of the material in the concrete. Class 520-C-2500
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