:, . TABLE OF CONTENTS CHAPTER- -IO PAINTING 10-1 Pail1t 10-2 'Ingredient of Paint ' . 10-3 Essential and Specific Properties of Good Quality Paint .' 10-4 Elements of a Good Painting Job 10-5 Surface Preparation 10-6 Kinds of Paint, Uses and Area Coverage 10-7 Estimating Your Paint 10-8 Paint Failures and Remedy 10-9 Wall Papering CHAPTER .. 11 AUXILIARY TOPICS 11-1 Accordion Door Cover 11-2 Glass Jalousie 11-3 Water Tank 11-4 Wood Piles 11-5 Bituminous Surface Treatment 11-6 Filling Materials 11-7 Nipa Shingle Roofing 11-8 Anahaw Roofing 297 298 300 301 302 305 311 317 320 323 325 326 329 331 332 334 338 CHAPTER CONCRETE 1-1 PLAIN AND REINFORCED CONCRETE Concrete is either Plain or Reinforced. By definition, Plain Concrete is an artificial stone as a result of mixi ng cement, fine aggregates, coarse aggregates and water. The conglomeration of these materials producing a solid mass is called plain con- crete. Reinforced Concrete or'! the other hand, is a concrete with reinforcement properly embedded in such a manner that the two materials act together in reSisting forces. The Different Types of Concrete Used in Construction are : 1. The Ordinary Portland cement. 2. The Rapid Hardening Portland Cement which is preferred when high early strength cc;mcr,ete is desired. 3. The Blast Furnace or Sulfate Cement used on concrete structures designed to resist chemical attack. 4. The Low Heat Portland Cement used for massive' sec- tions designed to reduce the heat of hydration. 5. The Portland Pozzolan Cement with a low hardening characteristic concrete. 6. . The High Alumina Cement. ( The High Alumina Cement is sometimes called aluminous cement or cement fundu. Its chemical composition is different from that of Portland cement for having predominant alumina -oxide conlent of at least, 32% by weight. The alumina lime is within the limit of 0.85% to .1.3%.