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Showing 1 to 20 of 286 for “"Portland cement"”.
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Toughness of Portland Cement Concrete
Made available in DSpace on 2014-12-13T19:31:55Z (GMT). No. of bitstreams: 1 8004184.pdf: 2531736 bytes, checksum: b66a5a9fa2293c81f59c5a90401603c0 (MD5) Previous issue date: 1979
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Drying shrinkage of Portland cement mortar
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1959.
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Wideband electromagnetic characterization of Portland cement concrete
Wideband electromagnetic characterization of Portland cement concrete (PCC) has been investigated in this study. This is necessary to correlate the material properties of PCC with its physical condition and hence aid in nondestructive evaluation of practical PCC structures. A test fixture has been …
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Laboratory evaluation of asphalt-portland cement concrete composite
Asphalt-Portland Cement Concrete Composite (APCCC) is a hot-mix asphalt with air voids in the range of 25 to 30 percent which is later filled with resin modified cement grout. The resin modified cement grout consists of portland cement, fly ash, sand, water, and prosalvia (PL7) additive. The …
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Use of a Portland Cement Accelerator with Mineral Trioxide Aggregate
… and often requires a second appointment for placement of a restoration to allow for setting. If the time to set of MTA can be accelerated to a single appointment time frame without significantly altering its properties, then MTA may gain even wider acceptance. The purpose of this study is to …
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Effect of Cooling Rates on Mineralization in Portland Cement Clinker
The rate at which cement clinker is cooled as it exits the kiln has long been known to be an important factor in cement quality. Cooling rate is one of the variables that has a significant impact on the minerals produced during the cement making process. The goal of the industry has been to produce …
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Structural Analysis and Design of Portland Cement Concrete Highway Shoulders
Made available in DSpace on 2014-12-13T19:31:48Z (GMT). No. of bitstreams: 1 7913600.pdf: 6885143 bytes, checksum: 30c59045289023ec243e8b2b0bb324e3 (MD5) Previous issue date: 1978
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Applicability of Linear-Elastic Fracture Mechanics to Portland Cement Concretes
Made available in DSpace on 2014-12-12T00:25:48Z (GMT). No. of bitstreams: 1 7212310.pdf: 2726486 bytes, checksum: 2b221357a2fb6c26df19ec4d36ae19d0 (MD5) Previous issue date: 1971
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Mica stabilization with lime, portland cement and lime-calcium carbonate
… stabilized with various percentages of lime, Portland cement, and combinations of calcium hydroxide and calcium carbonate. In order to trace the calcium carbonate and calcium hydroxide in the stabilized soil, x-ray diffraction analyses, differential thermal analysis, and thermagravimetric …
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The effects of utilizing silica fume in Portland cement pervious concrete
Silica fume has long been used as a supplementary cementing material to provide a high density, high strength, and durable building material. Silica fume has a particle size a fraction of any conventional cement, which allows it to increase concrete strength by decreasing the porosity especially …
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CHARACTERIZATION OF CRUSHED PORTLAND CEMENT CONCRETE RUBBLE AGGREGATE FOR URBAN ROADS
… conventional hot mix asphalt concrete (HMAC) or Portland cement concrete (PCC). To ensure long term pavement performance, quality aggregate sources are needed in all road design structural layers. Recent years have seen an increased need for substructure drainage systems, therefore increasing the …
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Characterization and deterioration detection of portland cement concrete using ultrasonic waves
… experimental study was conducted to characterize Portland cement concrete (PCC), to detect deterioration induced by freeze/thaw and alkali-silica reaction, and to detect chloride presence in PCC using ultrasonic waves. The experimental program was initiated to investigate the effect of water to …
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An investigation of the effects of freezing on portland cement concrete
… some conclusions with regard to the curing of Portland cement concrete. Some of the more important conclusions are as follows l. A concrete, if it may be classed as such, consisting of fine aggregate, cement, and water, is not subject to the extreme effects of freezing as is a true concrete …
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Evaluation of Precast Portland Cement Concrete Panels for Airfield Pavement Repairs
… the identification and validation of expedient portland cement concrete (PCC) repair technologies have been the focus of the pavements research community for decades due to ever decreasing construction timelines. Precast concrete panel technology offers a potential repair alternative to …
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Effect of pre-stressing on the durability of portland cement concrete
In view of the fact that prestressed concrete is extensively used in bridge construction and that it holds potentialities for eventual use in pavement construction, and that methods must be investigated to utilize an otherwise rejected aggregate which cannot be used for its poor performance under …
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Evaluation of lower quality recycled PCCP for Portland Cement Treated Base (PCTB)
… looks to incorporate these aggregates into Portland cement treated base (PCTB). KDOT currently practices a freeze-thaw method that includes 90 days of curing and a maximum of 660 freeze-thaw cycles to determine the durability of its concrete pavements and bases. An experimental study was …
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Mechanical Properties Of Portland Cement And Its Constituents At The Nano-Level
… Multi-Scale Modeling Techniques and Analysis For Cementitious Materials Under Dynamic Loading in association with North Carolina Agricultural & Technical State University and the US Army. This research investigates several attempts at creating a better Portland cement model at the atomistic level …
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