Cork insulation; a complete illustrated textbook on cork insulation ...

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486 CORK INSULATION form on walls and ceil-ing and the interior finish must be such that it will successfully resist such temporary conditions and permit of sanitary and hygienic conditions at all times through proper cleansing. To tile the entire interior of hotel cold storage rooms in white is the most satisfactory way, but is expensive. An alternate specifica- tion, considerably less expensive, if now in use with satisfactory results. It consists of two coats of Portland cement plaster troweled smooth and hard for the walls, ironed-on at the factory mastic finish^ corkboard for the ceilings, and hard concrete wearing floor over floor <strong>insulation</strong>, with metal floor grids embedded flush in the 1-inch cement top finish. The plaster is marked of? in suitable squares to confine hair line check cracks to the score marks, and the joints in the ironed-on mastic finish corkboard are sealed flush with a mastic filler, by ironing with a hot tool. This ironing process causes the filler to combine with the mastic material so that the finished surface is a continuous sheet, sufficiently elastic at low temperatures to elimi- nate the possibility of cracking and absolutely impervious to moisture. The walls and ceiling can then be painted two coats of white prime and one good coat of white elastic enamel. Two coats of orange shellac.should be applied to the mastic surface before the prime is applied, as otherwise the oils in the mastic material will cause the white prime and enamel to stain. In quite a few instances, ironed-on mastic finish corkboard has been used on walls, as well as ceiling, with excellent results. It, unquestionably, is superior to Portland cement plaster but does not finish oflf as smoothly unless unusual care is taken in erection and sealing of the mastic joints. It is quite difficult to obtain concrete wearing floors hard enough to successfully withstand hotel service. For that reason the use of metal floor grids is essential, and a cold storage room floor so constructed will outlast steel plates. These items, naturally, make the cost of a strictly modern hotel cold storage room somewhat more than the cost of ordinary equipment, but the first cost is practically the last cost and is far cheaper in the long run. — 1 Since this article was written in 1918, plastic mastic finish, hand troweled to corkboard surfaces at point of erection, has been developed to a satisfactory standard by the use of a high grade emulsified asphalt mixed and handled according to proven formula and tested method. The Author.
HANDLING CONCRETE 487 CONCRETE.* Anyone who is careful to observe the simple rules for doing concrete work such as that outlined herewith can make and place concrete satisfactorily, even though he may have had no previous experience. What Concrete Is.—Concrete is made by mixing portland cement, sand, pebbles or broken stone and water in certain definite proportions according to the kind of work for which the concrete is to be used, and then permitting the mixture to harden under proper conditions in forms or molds. As soon as concrete has been mixed, if left undisturbed, it begins to harden and soon becomes like stone. The hardening process, which is a chemical change that takes place in the cement when mixed with water, continues for a long time after the concrete has acquired sufficient strength for the purpose intended. This continual increase of strength is the quality by which concrete differs from all other materials. Concrete grows ever stronger, never weaker by age. Theory of Mixing Concrete.—Pebbles, sand and cement must be mixed together in correct proportions in order to make a dense, strong concrete. For this reason, in mixing concrete, stone and sand are used in such proportions that the amount of spaces or voids between them is as small as possible, and all the surfaces of the sand and pebbles are coated with a film of cement. The smaller the voids are, the stronger and more dense will be the concrete. A dense concrete is also watertight; if the voids are not all <strong>complete</strong>ly filled, the concrete will be porous and will not be impervious to water. It is very important that no dirt or finely powdered sand be used, as the use of such material interferes with the action of the cement in hardening. The strength of the concrete depends upon the adhesion of the cement mixture to the clean surfaces of sound, hard particles of sand or stone. Portland Cement.—Portland cement is a uniform, reliable product. Any of the standard brands produced by members of the Portland Cement Association are tested and guaranteed and will produce good concrete when properly combined in correct proportion with the other materials necessary for a concrete mixture. Portland cement is packed and shipped in standard cloth sacks or in paper bags holding 94 pounds net weight. For convenience in determining the necessary quantity of the several materials entering into a concrete mixture, a sack of portland cement may be con- sidered as one cubic foot. "Courtesy of Portland Cement Association.
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^oofe^a- 1842.4 This book may be ke
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Cork Insulation A
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To the Memory of JAMES EDWARD QUIGL
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tion of cork to other and more remo
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viii TABLE OF CONTENTS CHAPTER VI.
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X TABLE OF CONTENTS CHAPTER XIII. C
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xii TABLE OF CONTENTS CHAPTER XVIII
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2 CORK INSULATION floats for nets,
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CORK INSULATION vfany attem])ts lia
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6 CORK INSULATION •^ 4.—Home of
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8 CORK INSULATION and fifty feet an
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CHAPTER II. CORK STRIPPING. 6.—Re
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12 CORK INSULATION the cork oak tre
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14 CORK INSULATION seasoning prelim
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CHAPTER III. USES OF CORKWOOD AND U
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S CORK INSULATION 12.—Importance
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20 CORK INSULATION usually scraped,
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22 CORK INSULATION ful utilization
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24 CORK INSULATION from capillarity
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26 CORK INSULATION in place and spi
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28 CORK INSULATION for cold storage
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30 CORK INSULATION very substantial
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Z2 CORK INSULATION came The Nonpare
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34 CORK INSULATION glass bottle, al
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36 CORK INSULATION merit and an eff
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38 CORK INSULATION Paragraph 340.
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40 CORK INSULATION turning those st
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42 CORK INSULATION tip
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44 CORK INSULATION IMPORTS INTO UNI
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46 CORK INSULATION IMPORTS INTO UNI
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IMPORTS INTO UNITED STATES CORK INS
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so CORK INSULATION IMPORTS INTO UNI
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52 CORK INSULATION < i 2
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54 CORK INSULATION
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56 CORK INSULATION
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58 CORK INSULATION IMPORTS ENTERED
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70 CORK INSULATION O" coo I lOiM <
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72 CORK INSULATION crease by its be
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74 CORK INSULATION the tube and mer
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76 CORK INSULATION cooled, the air
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78 CORK INSULATION ordinary pressur
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80 CORK INSULATION sion. If a subst
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CHAPTER VIII. MEASUREMENT OF HEAT,
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84 CORK INSULATION equal to unity,
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86 CORK INSULATION The heat of fusi
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88 CORK INSULATION vaporize, and wh
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90 CORK INSULATION a pressure of 35
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92 CORK INSULATION of such air at t
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94 CORK INSULATION RELATIVE HUMIDIT
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96 CORK INSULATION and the temperat
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98 CORK INSULATION perature of the
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100 CORK INSULATION INTERNAL THERMA
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102 CORK INSULATION usually classed
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104 CORK INSULATION lose by radiati
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106 CORK INSULATION age wall <stron
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108 CORK INSULATION It will be seen
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110 CORK INSULATION H=K A (.U—U)
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112 CORK INSULATION : equals 17917,
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114 CORK INSULATION convection, and
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116 CORK INSULATION metal boxes wit
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118 CORK INSULATION the test box wi
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120 CORK INSULATION the areas and t
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122 CORK INSULATION 79.—Tests by
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124 CORK INSULATION a narrow limit,
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126 CORK INSULATION In addition to
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128 CORK INSULATION applications we
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130 CORK INSULATION
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132 CORK INSULATION j;aii 03 O .O 2
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134 CORK INSULATION
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136 CORK INSULATION
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138 CORK INSULATION
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140 CORK INSULATION
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142 CORK INSULATION
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144 CORK INSULATION
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146 CORK INSULATION
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148 CORK INSULATION
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ISO CORK INSULATION ^ I CO « O :s
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152 CORK INSULATION
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154 CORK INSULATION
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156 CORK INSULATION o ffi K K a ,=5
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158 CORK INSULATION
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160 CORK INSULATION o ^ J W to
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162 CORK INSULATION
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164 CORK INSULATION
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166 CORK INSULATION Section XI of *
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168 CORK INSULATION capillarity, el
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170 CORK INSULATION conceivable min
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172 CORK INSULATION test consists o
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174 CORK INSULATION 85.—Convenien
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176 CORK INSULATION basement except
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CHAPTER XII. PROPER THICKNESS OF CO
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ISO CORK INSULATION i ness that wil
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182 CORK INSULATION that a small ch
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184 CORK INSULATION 91.—Proper Th
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186 CORK INSULATION license alone i
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188 CORK INSULATION In new structur
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190 CORK INSULATION ure, in closed-
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192 CORK INSULATION corner of the r
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194 CORK INSULATION should be rever
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196 CORK INSULATION cold storage ro
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198 CORK INSULATION In the early da
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200 CORK INSULATION Until comparati
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202 CORK INSULATION overcome obstac
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204 CORK INSULATION introducing pur
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206 CORK INSULATION Pure air is dif
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208 CORK INSULATION ing capacity. I
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210 CORK INSULATION A hard, repress
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212 CORK INSULATION storage room is
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216 CORK INSULATION joists of such
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218 CORK INSULATION and delicately
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220 CORK INSULATION slight variatio
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222 CORK INSULATION filler and then
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224 CORK INSULATION ating less heat
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226 CORK INSULATION The first petro
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228 CORK INSULATION to be used in a
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230 CORK INSULATION Flash Point is
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232 CORK INSULATION A suitable Asph
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234 CORK INSULATION enveloping memb
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236 CORK INSULATION fying agent, on
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238 CORK INSULATION at 105° C. The
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CHAPTER XIII. COMPLETE SPECIFICATIO
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242 CORK INSULATION 116.—Finish.
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244 CORK INSULATION a second layer
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246 CORK INSULATION one layer of ..
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248 CORK INSULATION CE/LING :-)::):
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250 CORK INSULATION into which cork
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252 CORK INSULATION 106.—Ceilings
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254 CORK INSULATION insulated, one
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256 CORK INSULATION compounds.* The
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258 CORK INSULATION to all joints i
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260 CORK INSULATION »
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262 CORK INSULATION 110.—Floors.
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264 CORK INSULATION the size of the
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266 CORK INSULATION Asphalt cement.
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268 CORK INSULATION shall then be e
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270 CORK INSULATION To the reasonab
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272 CORK INSULATION butted tight, a
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274 CORK INSULATION mixed one part
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276 CORK INSULATION consisting of .
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278 CORK INSULATION of . . .-inch p
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280 CORK INSULATION sand* for each
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282 CORK INSULATION To prepare Asph
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284 CORK INSULATION must be applied
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286 CORK INSULATION plied, and the
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288 CORK INSULATION 122.—Second L
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290 CORK INSULATION 124.—First La
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292 CORK INSULATION that the forms
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294 CORK INSULATION and all joints
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296 CORK INSULATION Break all joint
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298 CORK INSULATION board uncoated
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300 CORK INSULATION area (one face
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302 CORK INSULATION [ storage doors
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3(X CORK INSULATION surface*, and t
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506 CORK INSULATION floor, on a lev
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308 CORK INSULATION See that the fi
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310 CORK INSULATION line of the fla
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312 CORK INSULATION corkboards are
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314 CORK INSULATION mixed product*,
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316 CORK INSULATION floors and baff
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318 CORK INSULATION History also sh
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320 CORK INSULATION into natural ic
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322 CORK INSULATION them from freez
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324 CORK INSULATION smaller establi
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326 CORK INSULATION on the "Mechani
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328 CORK INSULATION the four walls
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330 CORK INSULATION load on the ref
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CHAPTER XVI. DEVELOPMENT OF THE COR
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334 CORK INSULATION "root house," t
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336 CORK INSULATION of the surround
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338 CORK INSULATION to a new positi
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340 CORK INSULATION natives who inh
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342 CORK INSULATION Nevertheless, t
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344 CORK INSULATION to the
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346 CORK INSULATION quickly form a
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348 CORK INSULATION come within the
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350 CORK INSULATION water, and the
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352 CORK INSULATION success, and su
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354 CORK INSULATION ^r T"T M // lC
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356 CORK INSULATION interlinings of
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358 CORK INSULATION Handles and Cor
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360 CORK INSULATION models, for ice
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362 CORK INSULATION Doors.—Door f
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364 CORK INSULATION triple nickel-p
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366 CORK INSULATION JEWETT SOLID PO
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368 CORK INSULATION of the opposite
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370 CORK INSULATION , waterproof co
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372 CORK INSULATION
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374 CORK INSULATION Top Iccr.—The
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376 CORK INSULATION COPELAND "DEPEN
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: 378 CORK INSULATION hours before
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380 CORK INSULATION j Household ref
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382 CORK INSULATION at the daily ex
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384 CORK INSULATION purposes and a
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CHAPTER XVII. DEVELOPMENT OF THE CO
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388 CORK INSULATION and practices p
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390 CORK INSULATION cream manufactu
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392 CORK INSULATION the ins
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394 CORK INSULATION heavily galvani
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396 CORK INSULATION dumping of the
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398 CORK INSULATION The Machine.—
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400 CORK INSULATION loss of efficie
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402 CORK INSULATION (b) Control of
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404 CORK INSULATION Modern Mechanic
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406 CORK INSULATION
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408 CORK INSULATION oning millions
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41C CORK INSULATION ing for the top
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412 CORK INSULATION Adjusliiii) Pla
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414 CORK INSULATION exactly in fron
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416 CORK INSULATION These compresso
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418 CORK INSULATION made to take si
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420 CORK INSULATION additional char
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422 CORK INSULATION The bottom lini
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424 CORK INSULATION Covers for Juni
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426 CORK INSULATION subject of inve
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428 CORK INSULATION lading next to
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430 CORK INSULATION warmest and the
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432 CORK INSULATION CHART IV The we
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434 CORK INSULATION That precooling
Page 450 and 451: 436 CORK INSULATION Mr. President,
Page 452 and 453: 438 CORK INSULATION the elimination
Page 454 and 455: 440 CORK INSULATION Now let me proc
Page 456 and 457: 442 CORK INSULATION of the eggs on
Page 458 and 459: 444 CORK INSULATION It may be said
Page 460 and 461: 446 CORK INSULATION occur. Salting
Page 462 and 463: 448 CORK INSULATION the two inches
Page 464 and 465: 450 CORK INSULATION ables as anythi
Page 466 and 467: 452 CORK INSULATION We are continui
Page 468 and 469: 454 CORK INSULATION Our object was
Page 470 and 471: 456 CORK INSULATION As air circulat
Page 472 and 473: 458 CORK INSULATION ers and cross s
Page 474 and 475: 460 CORK INSULATION States standard
Page 476 and 477: 462 CORK INSULATION temperature and
Page 478 and 479: 464 CORK INSULATION CORK PAINT.* Fo
Page 480 and 481: 466 CORK INSULATION strengthening c
Page 482 and 483: 468 CORK INSULATION only 0.38; that
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Page 486 and 487: 472 CORK INSULATION possible throug
Page 488 and 489: 474 CORK INSULATION ing and heating
Page 490 and 491: 476 CORK INSULATION that for each o
Page 492 and 493: 478 CORK INSULATION case of other g
Page 494 and 495: 480 CORK INSULATION because it will
Page 496 and 497: 482 CORK INSULATION ECONOMY OF GASO
Page 498 and 499: 484 CORK INSULATION That this amoun
Page 502 and 503: 488 CORK INSULATION Practically all
Page 504 and 505: 490 CORK INSULATION for the pebbles
Page 506 and 507: 492 CORK INSULATION nailed to three
Page 508 and 509: 494 CORK INSULATION QUANTITIES OF C
Page 510 and 511: 496 CORK INSULATION EXAMPLE OF PURC
Page 512 and 513: 498 CORK INSULATION Portland cement
Page 514 and 515: 500 CORK INSULATION FREIGHT CLASSIF
Page 516 and 517: 502 CORK INSULATION CORK PIPE COVER
Page 518 and 519: 504 CORK INSULATION to give a bette
Page 520 and 521: 506 CORK INSULATION 3. Ice Water Th
Page 522 and 523: 508 CORK INSULATION brought tightly
Page 524 and 525: 510 CORK INSULATION A GOOD DRINK OF
Page 526 and 527: 512 CORK INSULATION The Cost and th
Page 528 and 529: 514 CORK INSULATION cause the agree
Page 530 and 531: 516 CORK INSULATION Legality— In
Page 532 and 533: 518 CORK INSULATION In general, unl
Page 534 and 535: 520 CORK INSULATION the work should
Page 536 and 537: 522 CORK INSULATION (1) Page $8, pa
Page 538 and 539: 524 CORK INSULATION Brooks ice crea
Page 540 and 541: 526 Page Depreciation in efficiency
Page 542 and 543: 528 CORK INSULATION test of asphalt
Page 544 and 545: 530 CORK INSULATION ice, formation
Page 546 and 547: 532 Page Sealed air cells 169 Seali
Page 548 and 549: 534 CORK INSULATION Page of heat by
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GOOD BOOKS YOU SHOULD HAVE These ar
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DATE DUE
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