Common use of TEMPERATURE REQUIREMENTS Clause in Contracts

TEMPERATURE REQUIREMENTS. When using an approved packaged grout, follow the manufacturer’s instructions for grout and air temperature at the time of placement. Otherwise, the grout temperature at the time of placement shall be not less than 50°F nor more than 90°F. Do not place grout when the air temperature measured at the location of the grouting operation in the shade away from artificial heat is below 40°F. 1003-6 ELAPSED TIME FOR PLACING GROUT Agitate grout continuously before placement. Regulate the delivery so the maximum interval between the placing of batches at the work site does not exceed 20 minutes. Place grout before exceeding the times in Table 1003-3. Measure the elapsed time as the time between adding the mixing water to the grout mix and placing the grout. TABLE 1003-3 ELAPSED TIME FOR PLACING GROUT (with continuous agitation) Air or Grout Temperature, Whichever is Higher Maximum Elapsed Time No Retarding Admixture Used Retarding Admixture Used 90°F or above 30 minutes 1 hr. 15 minutes 80°F through 89°F 45 minutes 1 hr. 30 minutes 79°F or below 60 minutes 1 hr. 45 minutes

TEMPERATURE REQUIREMENTS. When using an approved packaged grout, follow the manufacturer’s instructions for grout and air temperature at the time of placement. Otherwise, the grout temperature at the time of placement shall be not less than 50°F 50F nor more than 90°F. 90F. Do not place grout when the air temperature measured at the location of the grouting operation in the shade away from artificial heat is below 40°F. 1003-6 ELAPSED TIME FOR PLACING GROUT Agitate grout continuously before placement. Regulate the delivery so the maximum interval between the placing of batches at the work site does not exceed 20 minutes. Place grout before exceeding the times in Table 1003-3. Measure the elapsed time as the time between adding the mixing water to the grout mix and placing the grout. TABLE 1003-3 ELAPSED TIME FOR PLACING GROUT (with continuous agitation) Air or Grout Temperature, Whichever is Higher Maximum Elapsed Time No Retarding Admixture Used Retarding Admixture Used 90°F 90F or above 30 minutes 1 hr. 15 minutes 80°F 80F through 89°F 89F 45 minutes 1 hr. 30 minutes 79°F 79F or below 60 minutes 1 hr. 45 minutes