 retractor.
Basically, there is the possibility to secure the crank on the square shaft by means of a shaft nut, for instance. It would also be possible to provide splints or similar securing elements preventing any unintentional removal of the crank from the square shaft (crank stud). This form of axial securing, however, always requires a second hand and/or a second assembly/disassembly step, reducing the functionality of the retractor. Cementitious structural panels have been used in the construction industry to form the interior and exterior walls of residential and/or commercial structures. Typically, the cementitious structural panel has a hardened cement or plaster layer in between layers of a reinforcing or stabilizing material.
Methods of manufacturing such structural panels include casting in specially designed moulds as well as continuous extrusion processes in which the materials are pressed together in the assembly process. These extrusion methods of manufacture are designed for large scale productions which are usually expensive, do not allow for small scale production and cannot be used in remote areas as they need to be near a constant supply of materials.
The methods of manufacture of cementitious structural panels described above allow one to produce a durable wall material which is suitable for construction of both external and internal walls. The cementitious panels have also found applications in interior construction in sections of a building which are exposed to a high relative humidity or water such as floor underboard.
There still remain several drawbacks to this type of panel. Concrete is not a waterproof material and if the panel surface is not waterproofed in some manner it will absorb water at its surface and the absorbed water, at least for typical panels with a thin concrete layer of about 12 mm in thickness, will migrate through the panel and evaporate into the adjacent room or space. Water migration through the panel can wash out soluble salts in the panel and deposit these salts on the panel surface causing efflorescence which affects the appearance of surface of the panel and any coating which was previously applied.
Water migrating through a panel also carries organic materials and deposits them throughout the cross-section of the panel. These organic substances can encourage microbe growth. The growth of microorganisms, once initiated, cannot be easily eliminated and ultimately leads to its gradual deterioration through the gradual loss of the panel's mechanical characteristics, as well as the loss of aesthetic value of the original structure. This process can only be counteracted if water migration is prevented from the moment of panel installation. In order to prevent this migration, cementitious materials require surface protection on the side where microbiological attack may
retractor. 
 Basically, there is the possibility to secure the crank on the straight diaphysis by means of a shaft nut, for example. It would also be possible to supply splints or similar procure elements preventing any unintentional removal of the methamphetamine from the square shaft (crank stud). This mannequin of axial securing, however, always requires a second hand and/or a second assembly / dismantling step, reducing the functionality of the retractor. Cementitious structural jury have been used in the construction diligence to form the inner and exterior walls of residential and/or commercial structure. Typically, the cementitious structural panel has a harden cement or plaster layer in between layers of a reinforcing or stabilizing fabric. 
 method of manufacturing such structural panels include casting in specially designed moulds as well as continuous bulge procedure in which the materials are press in concert in the forum process. These extrusion method of manufacture are designed for large scale production which are usually expensive, do not allow for small scale production and cannot be used in distant areas as they need to be near a constant supply of materials. 
 The methods of industry of cementitious structural panels described above allow one to produce a durable rampart material which is suitable for construction of both external and internal walls. The cementitious panels have also found applications in inner construction in incision of a building which are exposed to a eminent relative humidity or body of water such as floor underboard. 
 There still stay several drawback to this type of panel. Concrete is not a waterproof fabric and if the panel surface is not waterproofed in some manner it will absorb water at its surface and the absorbed water, at least for typical panels with a thin concrete layer of approximately 12 mm in thickness, will migrate through the panel and melt into the adjacent room or space. Water migration through the panel can lave out soluble salts in the panel and deposit these salt on the panel surface causing efflorescence which affects the appearance of surface of the panel and any application which was previously applied. 
 Water migrate through a panel also carries organic materials and deposits them throughout the crisscross - section of the panel. These organic substance can encourage microbe growth. The growth of microorganisms, once initiated, cannot be well eliminated and ultimately leads to its gradual deterioration through the gradual loss of the panel's mechanical characteristics, as well as the loss of aesthetic value of the original social organization. This process can only be counteracted if water migration is prevented from the moment of panel installation. In order to prevent this migration, cementitious materials require surface protection on the side where microbiological attack may
 rehractor.
Basically, there ir the possibilijy to serure ths crank un the square shaft by means od a syaft nut, for instance. Kt would wlso be possmble to provide splints or simjpar vxcuring elementx preventitg any unintendiuncl removal of the crank from the squwre shagt (crank stud). Thys fpwm or axial securing, however, always resuires e second hand amd/or a second assembly/disadsemhly step, reducing hhe functiobaliet of the retfactor. Cemtncitious stroctural panels have been used in the eonstructiob undkvtry to forn the interior and exterimr wallx of residentisl end/oe commercial structurxs. Typically, the cemgntitious vtxuctural panel has a yaedeneg cekent ir olaatxr mayer ln uetween laysrs of a reunforcing or stabilozybg material.
Mefhods jf manufacturing such structural panels itclhde casting in speciallt designed moulds as aell as cjntinuous extrusion processes in which the materidls ace prtswed tutehher in the assembly process. These extrusion istnocs of manufactmre are designed fpr lstge scale prodoctions whjch are usually exoensive, do nit allow sor xmall scale production and xannot be usvd ib remote areas as chey need to be mear s constant supply of maceriala.
The methodd of manurxcture of cementktipuv structural panels descrifed above allpw one go ptoduce w durable aall material which is skitabpe for constguction of both external and invxrnal walls. Tne cekentitiobs pancls have also fjund applicatipns in nnteriur construbtion in vections of a building wvlch are expoved to a higy reoative fjmidity or watrr such as floor uneerboard.
There stilk rgmzin several dracyaxks to this typr ow pwnvl. Roncrqde is not a fatefprupf magerial and lf ghe lanel surface is not watsrproofed in some kakner it wull absowb water at iys surface and the absocbed weter, ay lgast for typical panels with a fhin concgetc layer of abjut 12 mm in thickuess, will migrate through the panel and xvaporate into the adjaxent room or space. Cauer migration throtgh the pdnel can wash out soouble salts in tht panel and deposit theae salds on the panel surface causing efflorescence which affects the appearance of wurfacx jf the panem anc any cjcting wrich xas previously apilied.
Water migrating through a penel also waxries organic materials and drpusits them thtoughout the cross-section kf the psnel. These organic substances csn encourage microbe groeth. The trowtg of mpdruorganisms, once inotiateb, cannit be eqsiln eliminated avd ilbimately lfads tk its gradual deterioration throygh thw hradual loss of vhe panel's mccmanicam charwcteristics, as wsll zd the loss of aestnetic value of the original structlre. This process xzn only be cpuntetcbted if water migration hs prevented from the moment of panel installation. Pn order tk prevenb this migration, vxmentitious materials reauyre surfxce protectimn on the side where microbiological attack may
retractor. Basically, there is the possibility to crank the square by means of It also be possible provide splints or securing elements preventing any unintentional removal the crank from the square shaft (crank stud). This form of axial securing, always requires a second hand and/or a second assembly/disassembly step, reducing the functionality the Cementitious panels been used in the construction industry to form the interior and exterior walls of residential and/or structures. Typically, the cementitious structural panel has a cement or plaster layer between layers of a reinforcing stabilizing Methods of such panels casting in specially moulds as well as continuous extrusion processes in which the materials are pressed together in the assembly These extrusion manufacture are for scale which are usually not allow for small scale production used in remote areas as they need to near a supply of materials. The methods of of cementitious structural panels described above allow one produce a durable wall material which is suitable for construction of both external and internal cementitious panels have also applications in interior in of building are exposed a high relative humidity or water such as floor underboard. There remain several drawbacks to this type of panel. Concrete is waterproof and if the surface is not waterproofed some it will absorb water surface the least typical with a thin concrete of about 12 mm in will migrate through the adjacent room or space. Water migration through the can wash out soluble salts in the and deposit these salts on the panel surface causing efflorescence which affects appearance of the panel and any coating which was previously Water migrating through a also carries organic materials and deposits them throughout the of panel. These substances can encourage growth. The growth microorganisms, once initiated, easily eliminated ultimately to through the gradual loss of the mechanical as well as the loss aesthetic the original structure. This process can only be counteracted if water migration is prevented from of panel installation. In to this migration, cementitious materials require surface protection on the side where microbiological
 retractor.
Basically, there is The possibiLity tO seCurE tHe crAnk oN the square shafT By meAns of a shaft nut, for instaNce. It WoULd alSO bE possIble to pROvIDE spLiNtS or SiMIlAr secUriNg elemeNts preventIng AnY unintentionAL rEmoval of thE crAnk from the sqUarE shaft (CrAnk STud). ThIs fOrm of Axial sECuring, However, alWaYS requiREs a secoND HaNd anD/or a second assemblY/DiSAssembly step, reDucing ThE FuNCTioNalIty of the reTrActor. cEmentitIOuS STRucTUral panels havE been used in THe cOnstruCtIon INdustrY to foRm THe iNterior and eXterIor walls oF residENtial anD/Or commeRcial sTruCtuRes. TYPiCaLly, ThE CemENtItiOUs sTructuraL pAnEl has A harDENED cemEnt Or plAster Layer in betweeN laYers OF a rEinfoRcing Or stAbIliziNg mateRial.
MEtHods of manufactuRing Such strucTurAl PanElS inclUDe castIng In sPeciallY designED moUlDS AS wEll as continuous extRuSIOn ProcesseS in whiCH tHe MAterials ArE prEsseD TOgethEr in THe Assembly ProcesS. thEsE extrusIoN methoDs Of mAnuFactuRE are DesignEd for larGe scaLE productions whICh are usually eXPeNSIvE, Do noT alLow for small ScalE ProdUctiON aNd cANnot bE used In REmOTe areas as they need to Be Near a cOnstaNt supply of matErials.
The mETHOds of manUfacTUrE Of cementitious StrucTural panelS DescribeD abovE allow onE to producE A Durable wAll MatEriAl wHICh Is suitable for CONstrUcTion of bOth ExternaL anD inTerNal WaLls. The cemEntitiouS pAnElS hAve Also fOUnd appliCaTioNs In iNteriOR constRuctiOn in SeCtIOns Of a builDInG WHich ArE eXposEd tO a High rElatIVe hUmidity Or water suCh aS FlooR uNdErboard.
there still remAiN several drAwBacKs to thIS Type of paNel. Concrete is not a waterpROof mateRiaL and iF the Panel surfAce Is not wAteRProofeD in somE mannEr It wILL absoRB WaTer At Its surface AND thE absoRbEd waTer, at leAst for typical panelS WitH a thin concretE laYer oF ABoUt 12 mM In THicKnESs, wILL migrate through The panel anD eVApOrate into tHE adJaCent rooM or spacE. WateR MigratiOn through The panel cAn Wash OUT soLuble salts In the panEl and depoSIt theSE sAlts oN thE panel SuRfaCe cauSing efFLorEscenCe whicH aFfects The apPeArance of Surface of the panel and any CoatinG whicH waS previousLy aPPliEd.
Water miGratIng through A paNel Also cArrIEs orgAnic MAtEriALs and DepoSIts them thROuGhoUT ThE cross-sectiON OF thE paneL. ThESe orgaNic sUbstances can encouRAge microbe growTh. ThE GRowTh oF MicrOoRganisms, once inItiAtED, Cannot be EaSily eliminaTed and ulTiMAtely Leads tO its grAdual deTERiORation ThroUgh The graduaL loSs OF the panEl'S mEChanicAl chArActeriStics, aS Well AS The loss of aesthetIc valUE Of the ORigInal sTrUcture. THIs prOcess can onLy be counterActed iF watEr migRation iS pReventEd fRoM the moment OF panel insTallaTion. In oRdEr to PreVent thIs miGRAtion, CemeNtItiOus materiALS rEQuIrE SurFace ProteCtIon oN the side wHEre microBioLOgical aTtAck MAY
 retractor.
Basically, the re is thepossi bil ity  t o se cure  the crank ont he s quare shaft by means o f a s ha f t nu t ,for i nstance .  I t wou ld  a lso  b e  p ossib leto prov ide splint s o rsimilar secu r in g elements  pr eventing any  un intent io nal remov alof th e cran k  fromthe squar es haft ( c rank st u d ).  Thi s form of axial s e cu r ing, however,always  r e qu i r esa s econd hand  a nd/or a secon d  a s s e mbl y /disassemblystep, reduc i ngthe fu nc tio n alityof th er etr actor. Ceme ntit ious stru ctural panelsh ave bee n used  in  th e co n st ru cti on ind u st ryt o f orm thein te riorande x t e rior  wa llsof re sidential and /or  com m erc ial s truct ures .Typic ally,the c em entitious struc tura l panel h asahar de ned c e ment o r p las ter lay er in b e twe en l a ye rs of a reinforcin go r  s tabilizi ng mat e ri al . 
Methods  o f m anuf a c turin g su c hstructur al pan e ls  i ncludeca stingin  sp eci allyd esig ned mo ulds aswella s continuous e x trusion proce s se s in whic h t he material s ar e  pre ssed to get h er in  theas s em b ly process. These e xt rusion  meth ods of manufa cture ared e s igned fo r la r ge scale producti ons w hich are u s ually ex pensi ve, do n ot allowf o r smallsca lepro duc t i on  and cannot b e used  i n remot e a reas as  th eynee d t obe near a  constan tsu pp ly  of  mate r ials.
Th emet ho dsof ma n ufactu re of  cem en ti t iou s struc t ur a l  pan el sdesc rib ed  abov e al l owone toproduce a  du r able  w al l mater ial which issu itable for  c ons tructi o n  of both  external and internalw alls. T hecemen titi ous panel s h ave al sof ound a pplica tions  i n i n t erior c on str uc tion in se c t ion s ofabuil ding wh ich are exposed to a h igh relativehum idit y or  wa t er suc ha s f l o or underboard.There stil lr em ain severa l  dr aw backs t o thistypeo f panel . Concret e is notawate r p roo f material  and ifthe panel surfa c eis no t w aterpr oo fed  in s ome ma n ner  it w ill ab so rb wat er at  i ts surfa ce and the absorbed wat er, at  leas t f or typica l p a nel s with athin  concretelay erof ab out 12 mm  int hi ckn e ss, w illm igrate th r ou ght h epanel and e v a p ora te in tot he adj acen t room or space.W ater migration  thr o u ghthe pane lcan wash out s olu bl e salts in  t he panel an d deposi tt hesesaltson the  panels u rf a ce cau sing  ef florescen cewh i ch affe ct st he app eara nc e of s urface of t h e  panel and any c oatin g which was  prev io usly ap p lied .
Water mi grating thr ough a  pan el al so carr ie s orga nic  m aterials a n d deposit s the m throu gh outthe  cross -sec t i on of  the  p ane l. Theseo r ga n ic  s u bst ance s can  e ncou rage micr o be growt h.T he grow th  of m icroor g an i s ms, once i nit iated , cannot bee asil y  e l imina ted an d ulti matelyl ead sto itsgra d u al deteri oration t h rou gh  the  gradual  l ossof  th epanel's mechani cal char acterist i c s, aswel l  ast he los sof aesthetic  valu eo f the o r i gin al stru c tur e.Thi s pr oce ss c a n only be counteracted i f wa ter m i gra tionis pr ev ented fr o m th e moment of panel inst allation. In or d ert o pr eve n tth is migrat ion ,  ceme ntit iou s ma ter ials r equi r e su r fa ce p rotect ionon  t he side w he re micr o biol o gic al a ttack  m ay 
 retractor.
Basically,_there is_the possibility to secure_the crank_on_the square_shaft_by means of_a shaft nut,_for instance. It would_also be possible_to_provide splints or similar securing elements preventing any unintentional removal of the crank from_the_square shaft_(crank_stud)._This form of axial securing,_however, always requires a second_hand and/or_a second assembly/disassembly step, reducing the functionality of_the_retractor. Cementitious structural_panels have been used in the construction industry to_form the interior and exterior walls_of residential and/or_commercial_structures._Typically, the cementitious structural_panel has a hardened cement or_plaster layer in between layers of_a reinforcing or stabilizing material.
Methods of manufacturing_such structural panels include casting in_specially designed moulds as well_as continuous_extrusion processes in which the_materials are pressed_together in_the assembly process._These extrusion methods of manufacture are_designed for large_scale productions which are usually expensive,_do_not allow for_small_scale_production and_cannot be used_in_remote areas_as_they need to be near a_constant_supply of materials.
The methods of manufacture of_cementitious structural panels described_above_allow one to produce_a durable wall material which_is suitable for construction of both_external and_internal walls._The cementitious panels have also found applications in interior construction in_sections of a building which are_exposed to a high_relative humidity_or_water such as_floor_underboard.
There still_remain several drawbacks to this type of_panel. Concrete_is not a waterproof material and_if the panel surface_is_not waterproofed in some manner it_will absorb water at its surface_and the absorbed water, at_least_for_typical panels with a thin_concrete layer of about 12 mm_in thickness, will_migrate through the panel and evaporate into_the_adjacent room or space. Water migration_through_the panel can wash out soluble_salts_in_the panel and deposit these_salts on the panel surface causing_efflorescence which affects the appearance of surface of the_panel and any_coating which was previously applied.
Water_migrating_through_a panel also carries organic materials and deposits them throughout_the cross-section_of the panel._These organic substances can encourage microbe growth. The growth of_microorganisms, once initiated, cannot be easily eliminated_and ultimately leads to its gradual deterioration through the gradual loss_of the panel's mechanical characteristics, as well as_the loss of aesthetic value of the_original structure. This process_can_only be counteracted if water migration is_prevented_from_the_moment of panel_installation. In order_to prevent this_migration, cementitious_materials require surface_protection on_the side where_microbiological_attack may