A chairde, m\u00e1 mheasc sibh riamh baisc coincr\u00e9ite agus go bhfaca sibh na boilgeoga cr\u00e1iteacha sin ag teacht an\u00edos cos\u00fail le ha\u00edonna gan chuireadh ag c\u00f3isir, tuigfidh sibh an tinneas cinn a chrutha\u00edonn siad. Is mise an saineola\u00ed ar gach n\u00ed a bhaineann le d\u00ed-aimsitheoir coincr\u00e9ite \u2013 t\u00e1im s\u00e1ite go smior sa r\u00e9imse seo le breis agus deich mbliana anuas, ag mionchoigeart\u00fa measc\u00e1n ar l\u00e1ithre\u00e1in oibre \u00f3 ilst\u00f3raigh go paiti\u00f3nna c\u00fail. Inniu, t\u00e1im chun an sc\u00e9al a insint daoibh faoi cad iad na breise\u00e1in dra\u00edochta seo, c\u00e9n f\u00e1th a gcuireann siad an-athr\u00fa ar an sc\u00e9al, agus conas is f\u00e9idir leat iad a chur ag obair duit. Faigh cup\u00e1n caife, agus tumaimis isteach gan aon l\u00edonadh \u2013 pun de dh\u00edth.<\/p>\n
Ar an gc\u00e9ad dul s\u00edos, c\u00e9ard is d\u00ed-aer\u00f3ir coincr\u00e9ite ann ar chor ar bith? Samhlaigh seo: agus t\u00fa ag meascadh coincr\u00e9ite, b\u00edodh s\u00e9 le leora\u00ed meascth\u00f3ra n\u00f3 le do bharraille rotha\u00ed iontaofa, f\u00e1gann an t-aer s\u00e1innithe sa mheasc\u00e1n. Crutha\u00edonn an t-aer sin c\u00far, agus m\u00e1 bh\u00edonn an iomarca de ann, b\u00edonn fol\u00fais aeir sa choincr\u00e9it leathanithe d\u00e1 bharr. Na fol\u00fais sin? T\u00e1 siad cos\u00fail le poill i gc\u00e1is na hEilv\u00e9ise \u2013 laga\u00edonn siad an strucht\u00far, d\u00e9anann siad n\u00edos p\u00f3ireach \u00e9, agus is c\u00fais le scoilteanna n\u00f3 dam\u00e1iste uisce iad amach anseo. Is iad d\u00ed-aer\u00f3ir\u00ed na laochra a thagann i gcabhair chun an c\u00far sin a bhriseadh s\u00edos, ag cinnti\u00fa go gcrua\u00edonn do choincr\u00e9it go m\u00edn, l\u00e1idir agus dl\u00fath. Is surfact\u00e1in n\u00f3 comhdh\u00faile silac\u00f3in-bhunaithe iad go bun\u00fasach a mh\u00ed-chothroma\u00edonn boilgeoga, ag ligean don aer \u00e9al\u00fa gan cur isteach ar an measc\u00e1n.<\/p>\n
I mo chine\u00e1l oibre, chonaic m\u00e9 tionscadail ag dul \u00f3 mhaith toisc gur sp\u00e1r\u00e1il duine \u00e9igin ar dh\u00edfoamair. T\u00f3g an uair sin agus muid ag doirteadh droichead \u2013 bh\u00ed an measc\u00e1n ag c\u00far ar n\u00f3s s\u00f3ide a croitheadh, agus gan an d\u00edfoamer ceart, bheadh leac bhriosc againn sa deireadh nach seasfadh in aghaidh an tr\u00e1cht. N\u00ed roghnach amh\u00e1in iad d\u00edbhoilscitheoir\u00ed; t\u00e1 siad riachtanach do choincr\u00e9it ardfheidhm\u00edochta, go h\u00e1irithe i gc\u00e1sanna ina nd\u00e9antar \u00ed a phump\u00e1il n\u00f3 a chroitheadh, \u00e1it a bhfuil t\u00e1bhacht mh\u00f3r le haer-ghabh\u00e1il.<\/p>\n
Anois, d\u00e9anaimis labhairt faoin gcaoi a n-oibr\u00edonn na ruda\u00ed seo i nd\u00e1ir\u00edre. N\u00ed heola\u00edocht roic\u00e9ad \u00e9, ach t\u00e1 ceimic iontach taobh thiar de. B\u00edonn an chuid is m\u00f3 de dh\u00edfoam\u00f3ir\u00ed hidreaf\u00f3bach \u2013 is fuath leo uisce \u2013 mar sin leathann siad amach ar dhromchla na mboilgeog. Tana\u00edonn s\u00e9 seo balla\u00ed na mboilgeog go dt\u00ed go bpl\u00e9ascann siad, ag scaoileadh an aeir a bh\u00ed gafa. Smaoinigh air mar a bheadh t\u00fa ag bior\u00fa bal\u00fan le sn\u00e1thaid, ach ar leibh\u00e9al micreasc\u00f3pach. B\u00edonn d\u00ed-aimhritheoir\u00ed sileac\u00f3in, mar shampla, thar a bheith \u00e9ifeachtach toisc go mb\u00edonn siad cobhsa\u00ed ag teochta\u00ed arda agus nach n-imoibr\u00edonn siad leis an simil\u00e9ar. Ansin t\u00e1 na cinn at\u00e1 bunaithe ar ola mhianrach, at\u00e1 n\u00edos saoire ach a d'fh\u00e9adfadh gan maireacht\u00e1il chomh fada i ndrochaimhr\u00e9id. Agus n\u00e1 d\u00e9an dearmad ar dh\u00edfoam\u00f3ir\u00ed polaim\u00e9ireacha; is ionann iad agus an scian Arm na hEilv\u00e9ise, il\u00fas\u00e1ideach do dheara\u00ed measc\u00e1in \u00e9ags\u00fala.<\/p>\n
Braitheann an cine\u00e1l ceart a roghn\u00fa ar do shocr\u00fa f\u00e9in. M\u00e1 t\u00e1 t\u00fa ag pl\u00e9 le coincr\u00e9it f\u00e9in-dhl\u00fathaithe (SCC), a shn\u00edonn mar mhil gan creathadh, teasta\u00edonn d\u00ed-aer\u00f3ir uait nach gcuirfidh isteach ar an reola\u00edocht \u2013 is \u00e9ard at\u00e1 i gceist leis sin n\u00e1 air\u00edonna sreafa. Mhol m\u00e9 d\u00ed-aeritheoir\u00ed polaeitearbhunaithe do na poist sin toisc go gcoinn\u00edonn siad an measc\u00e1n sreabhach agus go mar\u00faann siad an c\u00far ag an am c\u00e9anna. Ar an taobh eile, i gc\u00e1s coincr\u00e9ite r\u00e9amhmheasctha, d'fh\u00e9adfadh d\u00ed-aeritheoir simpl\u00ed alc\u00f3lbhunaithe an beart a dh\u00e9anamh, go h\u00e1irithe m\u00e1s facht\u00f3ir \u00e9 an costas. Leid ghairmi\u00fail: d\u00e9an t\u00e1st\u00e1il i mbaisceanna beaga i gc\u00f3na\u00ed ar dt\u00fas. D'fhoghlaim m\u00e9 ar an mbealach crua go bhf\u00e9adfadh an rud a oibr\u00edonn sa tsaotharlann c\u00far a dh\u00e9anamh ar bhealach difri\u00fail ar an l\u00e1thair de bharr teochta n\u00f3 cine\u00e1lacha comh\u00e1bhar.<\/p>\n
Na bunt\u00e1ist\u00ed? A dhuine, c\u00e9n \u00e1it a dtos\u00f3inn? Cialla\u00edonn coincr\u00e9it n\u00edos l\u00e1idre go maireann na foirgnimh n\u00edos faide \u2013 t\u00e1imid ag caint ar chostais chothabh\u00e1la laghdaithe agus ar chliaint n\u00edos sona. Feabhsa\u00edonn d\u00edbhoilsitheoir\u00ed an inoibritheacht freisin, ionas nach mb\u00edonn do chri\u00fa ag streachailt le praiseach boilgeach le linn na suite\u00e1la. Ina theannta sin, feabhsa\u00edonn siad bailchr\u00edoch an dromchla; deireadh le marcanna gr\u00e1nna n\u00f3 le c\u00farchealla a thugann le fios gur obair amait\u00e9arach at\u00e1 ann. \u00d3 thaobh an chomhshaoil de, is roghanna \u00e9iceabh\u00e1cha iad roinnt d\u00edbhoilsitheoir\u00ed nua-aimseartha a bhfuil VOC \u00edseal iontu, at\u00e1 ag teacht le caighde\u00e1in na foirgn\u00edochta gl\u00e9ine. De r\u00e9ir mo thaith\u00ed f\u00e9in, m\u00e1 chuirtear idir 0.1% agus 0.5% de r\u00e9ir mhe\u00e1chan an ts\u00e9im\u00e9il leis, is f\u00e9idir an t-\u00e1bhar aeir a laghd\u00fa faoina leath, agus m\u00e9ad\u00fa 10-20TP3T a chur leis an neart comhbhr\u00faite. Sin f\u00edor-airgead a sh\u00e1bh\u00e1il ar dheisi\u00fach\u00e1in.<\/p>\n
T\u00e1 s\u00e9 simpl\u00ed d\u00ed-aimsitheoir a chur i bhfeidhm, ach is \u00e9 an t-am\u00fa an rud is t\u00e1bhachta\u00ed. Cuir iad go luath sa phr\u00f3iseas measctha \u2013 d\u00edreach i ndiaidh an uisce agus an ts\u00e9imint, sula gcuirtear na comhthiomsaithe isteach \u2013 chun iad a scaipeadh go cothrom. T\u00e1 t\u00e1bhacht leis an d\u00e1ileog freisin; m\u00e1 chuireann t\u00fa an iomarca isteach, d'fh\u00e9adf\u00e1 deireadh a chur leis an aer-iont\u00f3g\u00e1il tairbheach at\u00e1 ann le haghaidh friota\u00edocht in aghaidh reo agus le\u00e1. M\u00e1 \u00fas\u00e1ideann t\u00fa r\u00f3bheag, is \u00e9 an c\u00far a bhuafaidh. Molaim i gc\u00f3na\u00ed tos\u00fa ag an r\u00e1ta a mholann an monar\u00f3ir agus coigeart\u00fa a dh\u00e9anamh bunaithe ar thriailmheasc\u00e1in. Is f\u00e9idir le huirlis\u00ed cos\u00fail le t\u00e1st\u00e1la\u00ed c\u00far (sea, t\u00e1 a leith\u00e9id ann) cabhr\u00fa leis an gcobhsa\u00edocht a thomhas.<\/p>\n
Ar nd\u00f3igh, n\u00edl aon rud foirfe. I measc na gconstaic\u00ed coitianta t\u00e1 neam f\u00f6rdh\u00e9anta le measc\u00e1in eile \u2013 mar shampla s\u00e1r-phlaisteoir\u00ed a d'fh\u00e9adfadh an c\u00far a mh\u00e9ad\u00fa. Bh\u00ed measc\u00e1in agam ina raibh an d\u00ed-aer\u00f3ir ag teacht salach ar laghdaitheoir uisce, rud a d'fh\u00e1g gach rud ina phraiseach anraith\u00fail. An r\u00e9iteach? T\u00e1st\u00e1il comhoiri\u00fanachta. Chomh maith leis sin, b\u00ed san airdeall ar r\u00f3-mheascadh; cuireann s\u00e9 n\u00edos m\u00f3 aeir isteach, ag s\u00e1r\u00fa an d\u00ed-aer\u00f3ra is fearr f\u00e9in. Agus st\u00f3r\u00e1il: coinnigh iad s\u00e9alaithe agus i bhfad \u00f3 shrianta teochta, n\u00f3 caillfidh siad a neart.<\/p>\n
Ag breathn\u00fa chun cinn, t\u00e1 an tionscal ag cur thar maoil le nu\u00e1la\u00edochta\u00ed. T\u00e1 \u00e9ileamh ag m\u00e9ad\u00fa ar dh\u00edfoim\u00e9ir\u00ed bithbhunaithe \u00f3 ola\u00ed planda\u00ed, rud a laghda\u00edonn \u00e1r sple\u00e1chas ar shint\u00e9iseacha. T\u00e1 an nanoteicneola\u00edocht ag teacht i gc\u00e9il freisin, le c\u00e1ithn\u00edn\u00ed nan-sileac\u00f3in a thairgeann smacht beachtais ar bhoilgeoga. Mar dhuine a bhfuil pr\u00f3t\u00f3t\u00e1ip t\u00e1st\u00e1ilte agam, is f\u00e9idir liom a r\u00e1 libh go bhf\u00e9adfadh siad seo an coincr\u00e9it ultra-ardfheidhm\u00edochta (UHPC) a r\u00e9abhl\u00f3idi\u00fa do sp\u00e9irl\u00e9inte agus do dhroichid.<\/p>\n
Mar chr\u00edoch, b'fh\u00e9idir nach \u00e9 an t-\u00e1bhar is meallaca\u00ed \u00e9 an d\u00edbhoilsce\u00e1n coincr\u00e9ite, ach is iadsan na laochra ci\u00faine a choinn\u00edonn \u00e1r dt\u00f3g\u00e1lacha daingean. Cib\u00e9 an duine th\u00fa a dh\u00e9anann obair iad f\u00e9in ag deisi\u00fa do chabhsa n\u00f3 gairm\u00ed ar mh\u00f3rthionscadal, is ionann neamhaird a thabhairt ar an bhfoam agus d\u00edon a shileann a sh\u00e9anadh \u2013 beidh s\u00e9 ina fhadhb duit n\u00edos d\u00e9ana\u00ed. M\u00e1 t\u00e1 fonn ort tuilleadh sonra\u00ed a fh\u00e1il, cuir sc\u00e9ala chugam; t\u00e1 sc\u00e9alta agus sonra\u00edochta\u00ed agam chomh fada is is cuimhin liom. Cuimhnigh, is measc\u00e1n sona \u00e9 measc\u00e1n saor \u00f3 bholg\u00e1in. B\u00edg\u00ed l\u00e1idir mar an coincr\u00e9it amuigh ansin!<\/p>","protected":false},"excerpt":{"rendered":"
Hey folks, if you’ve ever mixed up a batch of concrete and watched those pesky bubbles pop up like uninvited […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-163","post","type-post","status-publish","format-standard","hentry","category-product"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/posts\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/comments?post=163"}],"version-history":[{"count":2,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/posts\/163\/revisions"}],"predecessor-version":[{"id":165,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/posts\/163\/revisions\/165"}],"wp:attachment":[{"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamingagent.net\/ga\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}