Aggregate in concrete mix - Study guides, Class notes & Summaries

CONCRETE FIELD TECHNICIAN NCDOT STUDY GUIDE |LATEST UPDATED| 2024When used to determine unit weight, the concrete in the mold must be struck off with a ... Strike off plate The reading on the gauge of a pressure meter is 6.2%. The aggregate used has a correction factor of 0.3%. The final air reported is ... 5.9% Which percent range most nearly represents the amount of paste volume in a concrete mix? 20-40% The air content for incidental and structural concrete ranges from...

Concrete Final Exam 2024 with complete solution;(Actual test questions and answers) Prior to placing concrete for pavements or slabs on grade, what should be done? - Answer ️️ - Subgrade should be compacted, trimmed, and moistened; forms should be erected; and the reinforcing steel members should be securely in place. In hot weather, what is important to do to the subgrade? - Answer ️️ -It needs to be moistened to prevent the dry ground from sucking water out of the concrete. What...

ACI - ANSWER American Concrete Institution C1064 - ANSWER Standard Test Method for Temperature of freshly mixed Hydraulic-Cement Concrete C172 - ANSWER Standard practice for sampling freshly mixed concrete C143 - ANSWER Standard test method for slump of hydraulic - cement concrete C138 - ANSWER Standard test method for Density (Unit Weight), Yield and Air Content (Gravimetric) of Concrete C231 - ANSWER Standard test method for Air Content of Freshly Mixed Concrete by the Pressure ...

Asphaltic concrete - A composite material that is prepared in a hot-mix plant and used for construction of highway, parking lot, or airfield pavements capable of supporting high traffic volumes and axle loads. Automatic screed controls - A system that overrides the self-leveling action of the asphalt paver screed and enables paving to a predetermined grade and slope, using either a rigid or a mobile type reference. Baghouse - Filter system at an asphalt plant to capture fine dust particles...

Assume that a certain files has a safe edge. This is an edge that has Correct Answer no teeth The one of the following which is the proper tool for threading a round rod is a Correct Answer die A rasp is a Correct Answer type of coarse file The one of the following which is the proper tool to use to tighten a round nut which has a series of notches cut in its outer surface is a(n) _____________ wrench Correct Answer spanner Small leaks resulting form poor threads on steel or wrought ...

Concrete Final Exam 2024 with complete solution;(Actual test questions and answers) Prior to placing concrete for pavements or slabs on grade, what should be done? - Answer ️️ - Subgrade should be compacted, trimmed, and moistened; forms should be erected; and the reinforcing steel members should be securely in place. In hot weather, what is important to do to the subgrade? - Answer ️️ -It needs to be moistened to prevent the dry ground from sucking water out of the concrete. What...

What is the purpose of surface prepartion of concrete for coatings and surfacings? - Answer-Good coating adhesion What is the preferred method of repairing unsound concrete that contains no rebar? - Answer-Remove and replace the unsound area with cementitious material What information is available in ICRI 310.2 for properly preparing concrete surfaces for coatings or surfacings? - Answer-Standards for different concrete profiles What surface preparation method will provide the lowest concr...

An attached garage shall be separated from all habitable rooms above the garage with not less than 5/8 of an inch gypsum board A structure that is intended for swimming or recreational bathing is considered to be a swimming pool if it contains water over 24 inches What type of fastener do you use to install cabinets? Truss head wood screws The process of preparing sand underneath a concrete slab requires sand to be Compacted Habitable space in a basement shall hav...

LARE Section 4 Questions & Answers 100% CorrectLARE Section 4 Questions & Answers 100% CorrectLARE Section 4 Questions & Answers 100% CorrectLARE Section 4 Questions & Answers 100% Correct Advantages of asphalt paving - ANSWERLow installation cost Low reflectivity Low maintenance cost Disadvantages of asphalt paving - ANSWERPropensity to erode at edges Susceptibility to frost damage Aggregate in concrete mix, diameter not to exceed: - ANSWER1/3 slab thickness Borrow Pit Method (grad...

Concrete Batch Plant Operator Exam (FDOT) Questions and Answers 2024 Stockpiles of aggregate shall be maintained in a well-drained condition in order to: - Answer-Minimize Free Water Content Coarse aggregate stockpiles must be sprinkled for at lest how many hours prior to batch for FDOT? -Answer-24 Free moisture of the aggregate means: -Answer-Moister on the surface of an aggregate that is above and beyond the absorbed moister in the aggregate. If the moister test is done other than by t...