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B. Construction Materials Engineerine Services <br />To accomplish the Consultant's Construction Materials Engineering Services, we will provide <br />qualified personnel to conduct field tests on a part-time, on-call basis, as requested by the City's <br />designated project personnel. The City will give the Consultant a 24-hour notice of testing so that the <br />Consultant can efficiently supply the required personnel. <br />1) Site Preparation and GradingBack#illing <br />a) Observe proof-rolling operations and make recommendations for undercutting and/or <br />stabilization, if required; <br />b) Provide qualified personnel for performing field density and moisture content tests on an "on-call <br />basis" during mass grading earthwork operations; <br />c) Perform compaction tests on utility backfill in utility trenches, both building and pavement areas; <br />and <br />d) Perform laboratory testing of proposed fill soils to determine their suitability, and moisture <br />content versus dry density relationship. <br />2) Foundation Bearing Surface Testing <br />a) Provide qualified personnel to observe foundation bearing materials for shallow and deep <br />foundation installation; <br />b) If required, provide recommendations for remedial work in a timely manner so that <br />delays are limited; and <br />c) Test and evaluate the floor slab subgrade for proper compaction prior to concrete <br />placement. <br />3) Structural Concrete Inspection, Sampling and Testing <br />a) Review concrete mix designs for compliance with project specifications; <br />b) Inspect the installation of reinforcing steel and anchor bolts prior to the placement of <br />concrete; <br />c) Sample and test plastic concrete and mold compressive strength cylinders for structural <br />concrete on a "part-time basis". Testing of the plastic concrete will include measurement <br />of its slump, air content, and temperature; and <br />d) Perform laboratory compressive strength tests on cured concrete cylinders. <br />4) Masonry Inspection, Sampling and Testing. <br />a) Review mortar and grout mix designs for compliance with project specifications; <br />b) Inspect the installation of reinforcing steel for masonry foundation wall, masonry unit cell <br />cleanliness, observation of mortar and expansion joints and sample the placement of grout and <br />mortar; and <br />c) Perform laboratory compressive strength tests on cured mortar, grout and masonry unit samples.