Lesson 09 - Lesson 9 BEN 1001 Building Construction * Stone...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Lesson 9 BEN 1001 Building Construction * Stone s lCloncrete Masonry —Ghapter #9 — Pgs 33? GT2 Types Of Building 8 Igneous * Dcposscd In a moitcn stale * Example. Granlte rs a very hard Igneous stone that can be polished Sedinemiry * Deposited by the aclion of water and wind. * Example: Limestone is a sol!I rayon-graineclI sedimentary stone that cannot be polished Mariam erphir: * Formerly ertlrel Igneous or setlnrenlary. transformed by heat and pressure - Ellample: Marble is a metamorphic stone that was once limestone: son-rewl'rat harder_ usually has pronoun: ed yein patterns. and can be polished to a mirror sheen Stone 8: Concrete Masonry - Stone Masonry - Types ltafElLIiiding Stone — QuarTying and Milling of Stone — stone Masonry ' Concrete Masonry - Manufacture of Concrete Masonry Unite - Laying Concrete Ellocl-te — Decoratlye Concrete Masonry Units - Other Types of Masonry Units Quarrying and Milling of tone Fleldslonl - Rough ouldlng stone that Is ootaned Irom methods or roclt-slrcwn llclos Hubble . ‘ Irregular" quan'leo fragments the! have or ' lcaslonc good lace Locrescsc In a wdl NOTE: Rubble can Hfirlfl rubble or fieldstnne Dlrrlenslon Stone - Stone that has been quarried and cut ll'ilIO' rectangular TUI'ITl - LEM? SHE!!- S'E l'éfél'l'Elll lII 3'!- C'll Sum Smut HOElE. an: referrer! to a Ashlar NOTE: Ashlar can rm: to an tllrmmion F-il- - 1 stone ' Houston- ' Tl'lll'l MENHDM}. Elil'IEI' TECEHQUIH 1.? rnegular. used 1r:r11oi:a1ng or pat-I19 Milling of Stone The quan‘y block is sliced into slabs using a gang saw. The faces of the slab are ground flat. Then polished smooth in a grinding and polishing machine. Finally, the edges of the slap are squared by a circular saw. TWO distinctions: - Rubble versus Ashlar - Coursed versus Random Concrete Masonry Units — CMU’s Concrete block - made from cast Portland cement and aggregate, usually sand and fine gravel Cinder block - if coal cinders are used as aggregate Clinker block - if bottom ash or clinker is used as an aggregate Manufacture of CMU’s Storing raw materials - The main raw materials used to produce CMUs are cement, sand, and aggregate Cement is stored in storage silos equipped with dust collectors - When the sand and aggregates arrive they are normally stockpiled in the yard, then transferred as needed to storage bins T Stone Masonry - Laying Stone Masonry is sometimes irregular and each piece must chosen and trimmed to fit Stones are stronger and more weather resistant when laid with the quarry-bed (grain) horizontal Stones are often too heavy to lift by hand and must be lifted with lewises and hoists Mortar joints in fine stonework are raked out to allow more consistent drying of mortar, and later pointed with a non-staining mortar Acids are not used to clean many types of stonework. Use only mild soap, water, and a soft brush Concrete Masonry Units Least expensive of any masonry units in North America, because they are produced at a rate of thousands per hour. They are very large, replacing twelve modular bricks, which results in faster wall construction. Hollow cores readily accept reinforcement. When properly reinforced, they are strong and fire resistant. Block walls accept Plaster, Stucco, and Tile directly Manufacture of CMU’s Batching and mixing - Raw materials for each batch are weighed or batched to ensure batch consistency - The mixer is an oversized cylinder turned on its side, with mixing blades attached to a horizontal shaft — Materials are dry mixed in the mixer for several minutes A relatively small amount of water is then added to the dry mix Admixtures, such as water repellents and coloring agents, are also added atthis time The batch is then mixed for five to eight minutes Once mixed, the concrete is dumped from the bottom otthe Manufacture of CMU’s MMdmg Alter a concrete batch is mitten it is fed into a mold Masonry units can be manufactured in almost any configuration — preihoee that the structural lrrteghw ot'the unh ls notcon'lpremlsect by walls that are e‘ll'tlcttlrelh- unstable — Ami-to hot can mace many othere'i' shapes hy atte‘tng the cccrlttlrlatloh-s ot parts that He assembled The c onc rate is compacted and consolidated by a :ombination of pressure and vibration Compactecl pcoducts are pushed EILH: ofthe mold orto a steel pallet — The estimate crouuctc alt: retell-ed to as “green”: ullcurou The mold can be iilled. compacted. and stripped E to '11 times per minute — men: than Edit-{3' equivalent}: concrete mesa-in.- LI'IES can :e made each hour Manufacture of CMU’s Pall-tici l‘lfl and Sfil'il‘ln Cured concrete products are removed from the kilns and moved to a processing area where optional operations tatce place to c recite arehneclural uI'lIts The units are then "cubed" or palletized and placed in storage Cllolng consists ofturrlll-lg lrldleldual urlIL-c arlct placing them in alternating layers to create an interlocking cube. Cub-es ace generally stac loed three to four high in the yard u ntilthey are delivered to a job site Laying Concrete Blocks Hollow cores readily accept reinforcement. See Figure 5.2? on page 32? Vertical reinforcing bars are inserted iI'ltfi 'lI‘IE I‘ltillltitttlir tfirEE of lhe CM Us and the cores are grouted eetlci Horizontal reinforcing is usually in the form of heavy wire joint reinforcing assemblies that are laid into the bed joints of mortar Eloncl beam blocks may be used to allow ordinary reinforcing bars to be placed horizontally as well as vertically Laying Concrete Blocks Manufacture of CMU’s Gunny Once a coring rack is filled with steel pallets o""green’ or we urecl conducts. the entire ractr s transpcatect to the kiln or curing ehamher Concrete produsts are normally cured a a maximum temperature of 12d]: to 180° F at atmospheric pressure SteamI ifusecl. is tU'ned on to maintain 1039f: humidity — In some climaes: the heat generated by the chemical proc essI referred to as the heat ol'hydratilon: is sufficient to raise the temperature to desired levels without the use of steam Tilt: cubic: cullllg ore-close llurlllallg.I ' takes M hours_ hilt could he Shortened by Sfllufiilnfl the I'f'llit' deslgrl and cuullg Lclrlpclatures Products generalty achieve Ftfl'ie of their uhlmate strength when 3 to 4 flaws Elli} Laying Concrete Bl ocks ll'Ih' are yen- large. replacing twelve Mfidulaf twinks which results in fasterwall construction ace | Ion-ea LilocI-i tit-aces ct Sizes hart-clout I'rom Rinker l‘tl'ateriae F'tcampte' A wall till] H' UMU'S tin-dc and {121 H' UMLF'S high has ‘3 Illollal lolllls a'flllg it's lcrlgill arid 1'2 puillla in rt's height ft'lfalls are laid In a bed of mortar} ll'luS it is — £20 a15-5t3'4-1El x 3-‘B'} — 26' T-Etfl' tong or [in 1 'IB" - 1 1c 3tEI"| I 25' T-fiffl” long —iiencoe+12xsej=3'ehah uiusxe1=ao“hmh _- mu email-nu. uker [fill-11c. titre-no and “IE I'ESIS'IBI'II When properly rclllfolced I .- — Iurrtcane recmmcnoatlons " . £123.12" aretor relhtorcectl'peureo ' - .. __ - clocks oo corrers. on each _ __ one or my onenlrig l'.‘ or - ." greaer. and perlollcally o1 tIrllrltclltlptcd walls .n'tscltlo poured 11' cm well hasan a-hiour the rating h-hh-‘hu :ma-n-I -uluA.-|- Im— Mfilll-II ' ill-rill MEIR K- " "return-l Tr—L'lc'I'rlll nun-ulna Decorative Concrete Masonry Units Other M359”? unlts Glass Block "a a Structural Terra Cotta " "F‘ ' {Stmctural Clay} V“. '5: Autoclavecl Cellular ' Concrete {ADC} or ' autoclaveo Aerated Concrete Conclusion . Assignment - Stone Masonry — Types of Building Stone — I11luarr'_-.ring| ancl Milling of Stone ' Page — Stone Masonry REVIEW QUEEtiDHE '1, 4, 5, 3: 5 - Concrete Masonry If you do not understand a question, email —Mullu1ecture ol Conclele Masollw Ulnls me at tflmlinmflEhCC Eu” or thmugh Laying Iiloncreto Blocks — Decolatwe Concrete Masonry Units my-PHCC-Edu ' Other Types of lli'lasonnrglr Units — |"-’|i:L.L.=r.IIIr3.r 1l"'.I'r::|| Construction Direct mhedded mnf truss anchur installed par \\ manufactumrs specificatiuna x “11H . __ Rmfhnss at 24 in. xxxxxh . ' “mum 1 [filflm}u.c.,max. nuanawwfih . xhgfinhh‘hhh - xhx‘ha‘i‘hhfi ' I’ ham‘akhh'fil I Muismna: banker wwu .. manna _ Cuncrete mason-y wall x— Engineered wand mafmlssesm r’r rafters at 24 im {6] ll 111111103“ 3' 'I'I'IEII. f 5 Roof all-milling .. . Ir” J Truss anchm' rated for wwfical uplifl If and hudznntal luads perpmldlculat “r and parallel t0 the wall *— 24 in. {fill} mm] Bond beam ” max- uvfirhang If” “- Cmcrete masonry wall a, Standard heel: embedded #" ____ __ -e 6 in. {152 nun}into “— ‘H’Efiiflfll reinfammnmt, -'=' hand beam {mill} at 35 mil“ il'fid each vertical wall {5' reinfnrcemem, 133]]. If; in. {6 mm} —~ex expansiun jnint "EH ' a e material and 53313“ we“ H— M.) bar diameter 1ep, min. Canal—ate slab “ex “am far Grade: 4D, 43 bar “a “a i“ diametcxs far 1.3de: GI]. .-" e_ .. MA"... “El 2 _ fig :EEHE afiafifi ‘ at} E 3'3 . m 3 RBInFurced cummte —~~H 13%;“? I. _- HAMjifijfifiefl-F famine ‘ I ~ a .. - egflyrfiflu ...
View Full Document

This note was uploaded on 01/05/2011 for the course DRAFTING A BCN 1001 taught by Professor Tomlinson during the Spring '10 term at Pasco-Hernando Community College.

Page1 / 6

Lesson 09 - Lesson 9 BEN 1001 Building Construction * Stone...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online