RMD1GT30–Samples of concrete in cube molds prepared for compressive strength test on road construction site
RF2ARC1D1–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RMFBE8DM–concrete testing
RFPK8CWP–Samples of concrete products on exhibition
RF2J7H618–woman pushes cube concrete block into a round hole.
RF2R63D8D–Construction worker push button crushing test machine for precast concrete
RF2RE0ENM–businessman points on pointer to big concrete wall with checklist
RF2MEJY0G–Two cube molds full with concrete, samples for the tensile or flexural testing and compressive strength test of the cement mixture casting building fo
RF2BTEMFB–Heaps of rubble and gravel for the production of concrete and reinforced concrete structures.
RF2BWHKBA–Engineering specification test for water and workability of concrete by measuring slump of a formed cone
RMB01CHT–Concrete test cube in the laboratory
RFMEMP7B–Concrete block used in construction. Building materials for paverists. Season of the spring.
RF2PKRY51–concrete inscription order on grey podium, soft light, front view smooth background, 3d rendering
RM2AG7RM0–. Value of the high-pressure steam test of portland cement.. concrete cylinders 8 inches indiameter by 16 inches high. The concrete was composed of onepart cement, two parts Potomac River sand, and four partswashed Potomac River gravel, by volume. A medium consist-ency was employed containing about 9 per cent of water andthe concrete was mixed in a one-half-yard cube mixer and moldedby hand in steel molds. These cylinders, of which 45 weremolded for each sample of cement, were tested, or are to betested, at various intervals up to 10 years. All test pieces werekept in a damp place for 30 days,
RF2ARC1D7–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2MEJY16–Two cube molds full with concrete, samples for the tensile or flexural testing and compressive strength test of the cement mixture casting building fo
RFMEMP9J–Concrete block used in construction. Building materials for paverists. Season of the spring.
RF2T15MF1–concrete inscription order on grey podium, soft light, front view smooth background, 3d rendering
RM2AN3029–The elastic properties of concrete under bi-axial loading . Unit Stress of •3-in. Cube,3 imp1e Conpres-3 ion. Ratio ofCtrenetli of8-in. Cubeto Strengthor G-in.Cube 20532055205620572058 2800206025002655 25252640280028302805 1.11.78.89.941.17Average .98 Prom the data in the table we may conclude that the compres-sive streri£^th of concrete under bi-axial loading does not differmaterially from the strength under simple compressive loading*.As mentioned above this conclusion is based on fifteen o-in.cube stresses and tT^enty 8-in. cube stresses. 20. Effect of Test Conditions.-Absolute values of b
RF2ARC0TE–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2MEJY0D–Two cube molds empty, oiled for concrete samples for the tensile, flexural testing and compressive strength test of the cement mixture casting buildin
RFMEMP9H–Concrete block used in construction. Building materials for paverists. Season of the spring.
RM2CRBP14–. The street railway review . rom the mixing board during the construction of thefoundation of an abutment at Middletown, built by the company ofwhich I am secretary (the sample procured by Mr. K. D. Graves,engineer of the work, and tested by Messrs. Lathburry & Spackman,of Philadelphia) broke at 1,032 lb. per .sq. in., one year after mixing,the individual pieces of trap in the sample breaking in practicallya straight line across the test piece, and not pulling out of the mor-tar at all. Regarding this lest, however, the great difficulty of fillingsuch a small cube with a concrete that is abso
RF2ARC0BX–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2MEJYK3–Two cube molds empty, oiled for concrete samples for the tensile, flexural testing and compressive strength test of the cement mixture casting buildin
RFMEMN20–Concrete block used in construction. Building materials for paverists. Season of the spring.
RF2ARC1D6–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RFMEMP4R–Concrete block used in construction. Building materials for paverists. Season of the spring.
RF2ARC0YW–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARBXB6–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC052–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC1J1–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC2Y1–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC158–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC08T–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC2XN–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC1HW–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARC0GF–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
RF2ARBYT2–A member of the construction of the laboratory takes a sample of concrete. He loads the concrete into a special mold with a trowel. The result is a cu
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