Always remove the plastic wrap from the cubes of brick upon delivery to the site.
Cover the cubes of brick with plywood boards or tarps.
When you start to mortar, spread only enough to permit the setting of the brick that you are working on.
Remember to discard the mortar within two hours.
Efforts should be concentrated on the proper installation of the control and expansion joints.
At the end of the day, spray the walls once they have achieved the initial set to compensate for evaporation.
Also, because of the summer heat
Masonry materials and mixing equipment should be stored in shaded areas.
It is important that the sand be moist throughout the day to maintain uniformity of the sand moisture for the duration of the wall construction.
All equipment should be cooled and the wooden mortar boards should be presoaked.