The State Highways of California: An Engineering Study Conducted Jointly by the California State Automobile Association and the Automobile Club of Southern California, July, 1920-January, 1921Times Mirror Printing & Binding House, 1921 - 388 halaman |
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Halaman 45
... SLABS Wire Mesh No. Slab Age Thick- ness How Finished Mixture Load at Failure Average C 6-1 C 6-2 8888 28 6 " 28 6 " 1 : 2 : 312 1 : 2 : 312 11650 10930 lbs . 10210 Comparing 6 " vs. 734 ′′ Plain Specimens SUMMARY 734 45.
... SLABS Wire Mesh No. Slab Age Thick- ness How Finished Mixture Load at Failure Average C 6-1 C 6-2 8888 28 6 " 28 6 " 1 : 2 : 312 1 : 2 : 312 11650 10930 lbs . 10210 Comparing 6 " vs. 734 ′′ Plain Specimens SUMMARY 734 45.
Halaman 46
... Specimens SUMMARY 734 " 6 " = 18790 lbs . = 8648 lbs . Difference = 10142 lbs . , or approx . 117 % by actual test Comparing Average of 2 6 " Plain Slabs Rolled , vs. 2 6 " Reinforced Slabs Rolled 6 " R. C. Aver . = 10930 lbs . 6 ...
... Specimens SUMMARY 734 " 6 " = 18790 lbs . = 8648 lbs . Difference = 10142 lbs . , or approx . 117 % by actual test Comparing Average of 2 6 " Plain Slabs Rolled , vs. 2 6 " Reinforced Slabs Rolled 6 " R. C. Aver . = 10930 lbs . 6 ...
Halaman 109
... specimens taken from test sections laid on dry and slightly moist subgrades , vs. carefully prepared subgrades where the moisture has penetrated from above meeting that from below . Experiments in the field to counteract the effects of ...
... specimens taken from test sections laid on dry and slightly moist subgrades , vs. carefully prepared subgrades where the moisture has penetrated from above meeting that from below . Experiments in the field to counteract the effects of ...
Halaman 5
... specimens to have had the same rate of expansion in all directions , these volume increases respectively correspond ... specimen absorbed about 12 % of water during a period of four days and that by absorbing the water it exerted an ...
... specimens to have had the same rate of expansion in all directions , these volume increases respectively correspond ... specimen absorbed about 12 % of water during a period of four days and that by absorbing the water it exerted an ...
Halaman 6
... specimens molded into cylinders . We recommend further tests of this character . Sieve analyses showed that the 13 different samples of adobe soil submitted from 5 counties were decidedly not uniform in grain size or sand content . A ...
... specimens molded into cylinders . We recommend further tests of this character . Sieve analyses showed that the 13 different samples of adobe soil submitted from 5 counties were decidedly not uniform in grain size or sand content . A ...
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The State Highways of California: An Engineering Study Conducted Jointly by ... California State Automobile Association Pratinjau tidak tersedia - 2017 |
Istilah dan frasa umum
adobe soil air-dry Angeles County approximately asphaltic concrete Automobile Association Automobile Club average bars bond issue built Butte County California Highway Commission cement clay Club of Southern committee concrete base concrete pavement concrete slab condition construction contract cost day labor deflection DEFLECTION-LOAD CURVES Derleth determine drainage expansion joints failure feet wide grade gravel heavy traffic Highway Fund highway system Imperial County inches thick increase J. B. Lippincott laboratory laid longitudinal cracks Los Angeles County macadam roads maintenance material Mesh mileage miles mixture mold Motor Vehicle oil macadam Orange County overload paved percentage practice present proportional limit reconstruction reinforced Route San Bernardino San Diego San Luis Obispo sand Santa Barbara County sections shoulders shrinkage sieve Southern California specimens steel strength sub-base subgrade subsoil Table tion Total trucks Tulare Tulare County uniform upkeep Ventura County volume wheel width of tire Wiskocil
Bagian yang populer
Halaman 161 - Any person driving a vehicle on a highway shall drive the same at a careful and prudent speed not greater than is reasonable and proper, having due regard to the traffic, surface and width of the highway and of any other conditions then existing, and no person shall drive any vehicle upon a highway at such a speed as to endanger the life, limb or property of any person.
Halaman 11 - Engineering and said route shall be so selected and said highways so laid out and constructed or acquired as to constitute a continuous and connected State highway system running north and south through the State traversing the Sacramento and San Joaquín valleys and along the Pacific Coast by the most direct and practicable routes, connecting the county seats of the several counties through which it passes and joining the centers of population, together with such branch roads as may be necessary...
Halaman 154 - Fill a 12-oz. graduated prescription bottle to the 4j-oz. mark with the sand to be tested. Add a 3 per cent solution of sodium hydroxide until the volume of the sand and solution, after shaking, amounts to 7 oz. Shake thoroughly and let stand over night. Observe the color of the clear supernatant liquid.
Halaman 154 - Shake thoroughly and let stand for 24 hours. Observe the color of the clear liquid above the sand. A good idea of the quality of the sand can be formed earlier than 24 hours, although this period is believed to give best results. If the solution resulting from this treatment is colorless, or has a light yellowish color * the sand may be considered satisfactory in so far as organic impurities are concerned. On the other hand, if a dark colored solution of a color deeper than that indicated by Fig.
Halaman 21 - That each supervisor shall perform such duties as may be imposed upon him by the Director of the Census in the enforcement of this Act, and the duties thus imposed shall be performed in any and all particulars in accordance with the orders and instructions of the Director of the Census; that each enumerator or other employee detailed to serve as enumerator shall be charged with...
Halaman 21 - Said California Highway Commission shall have the supervision and direction of all state roads and state highways now existing and the improvement, maintenance, repair and protection thereof, and have charge of and perform all other duties relating to state roads and state highways which may be imposed upon said commission by said advisory board.
Halaman 11 - Act of 1915, provided, however, "that expenses of the acquisition, construction and improvement of the extensions enumerated * * * shall be partly borne by the county or counties in which such extensions lie ; the extent and character of such division of expenses between the State and county shall rest for final determination with the State Department of Engineering...
Halaman i - Club, the Automobile Club of Southern California and the California State Automobile Association.
Halaman 21 - Investigate and determine upon the various methods of road construction adapted to different sections of the state, and as to the best methods of construction and maintenance of highways and bridges.
Halaman 16 - ... to constitute a continuous and connected state highway system running north and south through the state traversing the Sacramento and San Joaquin valleys and along the Pacific coast by the most direct and practicable routes, connecting the county seats of the several counties through which it passes and joining the centers of population, together with such branch roads as may be necessary to connect therewith the several county seats lying east and west of such state highway.