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All Weather Masonry Construction

All Weather Masonry Construction

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All Weather Masonry Construction

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  1. All Weather Masonry Construction

  2. International Building Code 2006Chapter 21: MasonrySection 2104 – Construction

  3. IBC 2104.1MASONRY CONSTRUCTION • ACI 530.1/ASCE 6/TMS 602

  4. Hot and Cold Weather Masonry Construction • Hot and Cold Weather Masonry Construction

  5. MSJC 530.1 – 1.8 CCOLD WEATHER CONSTRUCTION • Ambient temperature below 40°F

  6. MSJC 530.1 – 1.8 CCOLD WEATHER CONSTRUCTION • Ambient temperature is the outdoor temperature at the time considered.

  7. CONSTRUCTION 40°F – 32°F 32°F – 25°F 25°F – 20°F 20°F and below PROTECTION 40°F – 25°F 25°F – 20°F 20°F and below MSJC 530.1 – 1.8 CCOLD WEATHER CONSTRUCTIONAmbient Temperature

  8. MSJC 530.1 – 1.8 C.1COLD WEATHER CONSTRUCTION • Do not lay glass units

  9. MSJC 530.1 – 1.8 C.2.aPREPARATION • Units not less than 20°F • Units shall not contain frozen moisture • No visible ice • or snow on • surface

  10. MSJC 530.1 – 1.8 C.2.bPREPARATION • Remove visible ice or snow from surface to receive new construction • Heat surfaces to above freezing

  11. MSJC 530.1 – 1.8 C.3CONSTRUCTION • Work in progress • Based on ambient air temperature • Water and aggregates not to exceed 140°F for mortar and grout

  12. MSJC 530.1 – 1.8 C.3.aCONSTRUCTIONTemperatures 40°F – 32°F(based on ambient temperature) • Mortar temperature 40°F – 120°F at time of mixing

  13. MSJC 530.1 – 1.8 C.3.aCONSTRUCTIONTemperatures 40°F – 32°F(based on ambient temperature) • Heat water and aggregates for grout when < 32°F

  14. MSJC 530.1 – 1.8 C.3.bCONSTRUCTIONTemperatures 32°F – 25°F(based on ambient temperature) • Mortar temperature 40°F – 120°F at time of mixing • Maintain mortar temperature above freezing until used

  15. MSJC 530.1 – 1.8 C.3.bCONSTRUCTIONTemperatures 32°F – 25°F(based on ambient temperature) • Heat water and aggregates so that grout temperature 70°F – 120°F at time of mixing

  16. MSJC 530.1 – 1.8 C.3.bCONSTRUCTIONTemperatures 32°F – 25°F(based on ambient temperature) • Maintain grout temperature > 70°F until placement

  17. MSJC 530.1 – 1.8 C.3.bCONSTRUCTIONTemperatures 32°F – 25°F(based on ambient temperature) • Heat AAC units to a minimum 40°F before installation

  18. MSJC 530.1 – 1.8 C.3.cCONSTRUCTIONTemperatures 25°F – 20°F(based on ambient temperature) • Article 1.8 C.3.b • Heat masonry surfaces to 40°F • Heat masonry to minimum 40°F prior to grouting

  19. MSJC 530.1 – 1.8 C.3.cCONSTRUCTIONTemperatures 25°F – 20°F(based on ambient temperature) • Wind breaks or enclosures when wind velocity > 15 mph

  20. MSJC 530.1 – 1.8 C.3.cCONSTRUCTIONTemperatures below 20°F(based on ambient temperature) • Article 1.8 C.3.c • Maintain air temperature > 32°F using enclosures and auxiliary heat

  21. MSJC 530.1 – 1.8 C.4PROTECTION • Apply after masonry is placed • Based on anticipated minimumdaily temperature forgrouted masonry • Based on anticipated meandaily temperature for ungrouted masonry

  22. MSJC 530.1 – 1.8 C.4.aPROTECTION • Maintain glass masonry > 40°F for 48 hours after construction

  23. MSJC 530.1 – 1.8 C.4.bPROTECTION • Maintain AAC masonry > 32°F for 4 hours after thin-bed application

  24. MSJC 530.1 – 1.8 C.4.cPROTECTIONTemperatures 40°F – 25°F • Weather-resistive membrane for 24 hours

  25. MSJC 530.1 – 1.8 C.4.dPROTECTIONTemperatures 25°F – 20°F • Completely cover with weather-resistive insulating blankets or equal for 24 hours • 48 hours for grouted masonry, unless Type III portland cement

  26. MSJC 530.1 – 1.8 C.4.ePROTECTIONTemperatures 20°F and below • Maintain above 32°F for 24 hours using heated enclosures, electric heating blankets, infrared lamps or other acceptable method • 48 hours for • grouted masonry, • unless Type III • portland cement

  27. MSJC 530.1 – 1.8 DHOT WEATHER CONSTRUCTION

  28. MSJC 530.1 – 1.8 D.1.aPREPARATIONAmbient temperature > 100°F or > 90°F w/wind > 8 mph • Mortar temperature < 120°F • Loose, damp sand

  29. MSJC 530.1 – 1.8 D.1.bPREPARATIONAmbient temperature > 115°F or > 105°F w/wind > 8 mph • Article 1.8 D.1.a • Shade materials and mixing equipment

  30. MSJC 530.1 – 1.8 D.2.aCONSTRUCTIONAmbient temperature > 100°For > 90°F w/wind > 8 mph • Mortar and grout < 120°F • Mixers, transport containers and mortar boards shall be flushed with cool water • Spread no more than 4 ft of mortar ahead for AAC units • Set AAC units within one minute

  31. MSJC 530.1 – 1.8 D.2.aCONSTRUCTIONAmbient temperature > 100°For > 90°F w/wind > 8 mph • Retemper with cool water • Use mortar within 2 hours

  32. MSJC 530.1 – 1.8 D.2.bCONSTRUCTION Ambient temperature > 115°F or > 105°F w/wind > 8 mph • Article 1.8 D.2.b • Use cool mixing water • No ice in mixing water when added to other materials

  33. MSJC 530.1 – 1.8 D.3PROTECTIONAmbient temperature > 100°For > 90°F w/wind > 8 mph • Fog spray new construction until damp three times a day for three days