{"id":75314,"date":"2019-05-07T13:29:51","date_gmt":"2019-05-07T11:29:51","guid":{"rendered":"https:\/\/blejkan.pl\/renowacje-chemoodpornymi-powlokami-mineralnymi\/"},"modified":"2020-01-24T12:00:55","modified_gmt":"2020-01-24T11:00:55","slug":"rehabilitation-with-chemical-resistant-mineral-coating","status":"publish","type":"page","link":"https:\/\/www.blejkan.pl\/en\/rehabilitation-with-chemical-resistant-mineral-coating\/","title":{"rendered":"Rehabilitation with chemical resistant mineral coating"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row row_height_percent=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; border_color=&#8221;accent&#8221; border_style=&#8221;solid&#8221; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; css=&#8221;.vc_custom_1548944632644{border-top-width: 12px !important;}&#8221;][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243; text_weight=&#8221;300&#8243; subheading=&#8221;in accordance with PN-EN 752-5; 13689; 13566-8, and PN-EN ISO 11296-1&#8243;]TECHNICAL DESCRIPTION OF THE REHABILITATION METHOD<br \/>\nOTHER REHABILITATION METHODS CHEMICAL RESISTANT MINERAL COATING[\/vc_custom_heading][vc_separator sep_color=&#8221;color-gyho&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]DESCRIPTION OF METHOD[\/vc_custom_heading][vc_column_text]Rehabilitation using chemical resistant mineral liners is used to renovate man-accessible sewers and sewer manholes. They are used in sewers which do not require structural reinforcement.<br \/>\nThe main purpose of this method is to seal the sewer and remove uneven surface resulting from corrosion of the host sewer.<br \/>\nDue to the existing environment in the sewer the material meets many other conditions which qualify it for use in specific conditions: resistance to sulphates and sulfuric acid, waterproofing properties, vapor permeability, etc.[\/vc_column_text][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]LINER INSTALLATION EQUIPMENT[\/vc_custom_heading][uncode_list icon=&#8221;fa fa-check&#8221;]<\/p>\n<ul>\n<li>sewer cleaning machine (jetting truck)<br \/>\nsewer inspection camera<br \/>\nby-pass equipment (pumps, hoses)<br \/>\ndropside truck for material transportation<br \/>\nhoisting device (or dropside truck with crane)<br \/>\ninjection grouting pumps<br \/>\nsewer fan<br \/>\npneumatic hole saw<br \/>\npneumatic jigsaw<br \/>\ntest equipment<\/li>\n<\/ul>\n<p>[\/uncode_list][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]PREPARATION FOR THE INSTALLATION[\/vc_custom_heading][vc_column_text]TECHNICAL EVALUATION OF THE SEWER<\/p>\n<p>Before the rehabilitation the pipe is jet-cleaned with a sewer cleaning machine placed on a truck. After that the pipeline is inspected with a remote-controlled camera. The analysis of the video from the sewer inspection forms the basis to create a detailed computer report on the technical condition of the pipe. On the basis of report data the sewer is classified depending on its technical condition.<\/p>\n<p>SELECTING THE REHABILITATION METHOD<\/p>\n<p>Depending on how the sewer is damaged or destroyed and its classification to a specific group, an appropriate rehabilitation method is selected. After the evaluation of the sewer\u2019s technical condition one should analyze geodetic data, groundwater level with respect to the base of the sewer, road traffic exposure, and other ratios that have influence on the selection of parameters of the liner that is to be used.<\/p>\n<p>STORAGE AND TRANSPORTATION TO THE CONSTRUCTION SITE<\/p>\n<p>The liner is delivered in bags or bulk to a stacking yard (warehouse) and from there it is delivered to the construction site in appropriate batches.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]LINER INSTALLATION[\/vc_custom_heading][vc_column_text]The order of works of placing the appropriate layer of chemical resistant mineral surface is as follows:<\/p>\n<p>Sewer cleaning from any existing small and large debris using a jetting truck (10-20 MPa) and manual cleaning of rubble and stones.<br \/>\nHigh-velocity water jetting (70-100 MPa) of the walls and ceiling of the sewer to dislodge any corroded loose sewer structure fragments and remove fats and other fixed foreign matter.<br \/>\nPreparing the walls and ceiling for the application of the mineral layer \u2013 removal of dripstone, leaks and unevenness using additional materials (quick-curing mortars, tack coats and injection grouts).<br \/>\nSpraying a mineral layer onto the wet surface of the sewer using a screw pump. In the case of brick sewers two layers are sprayed. The first layer is to fill the joints between the bricks and identify any missed minor leaks which must be removed before the application of the second layer. The optimal layer thickness is 10 mm, and if multiple layers are applied the thickness must not exceed 25 mm.<br \/>\nDrying the sewer by putting by-passes and connections. A by-pass can be made inside the sewer and then the flow is driven entirely by gravity, or outside using sewage pumps of a capacity of up to 1,200 m3\/h.<br \/>\nCleaning sewer floor using a jetting truck.<br \/>\nHydrojetting or wet sandblasting the sewer floor.<br \/>\nPreparing sewer floor for the application of a mineral layer using additional materials.<br \/>\nSpraying a mineral layer or applying it by hand (egg-shaped sewers).<br \/>\nBy-pass removal and minor corrections after removing external by-pass.<br \/>\nThe sewer is usable after ca. 8 hours from the final application of the layer<br \/>\n[\/vc_column_text][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]INSPECTION[\/vc_custom_heading][vc_column_text]CCTV INSPECTION<\/p>\n<p>Once the installation is finished and house drains are opened a CCTV acceptance inspection is made and recorded on a DVD or another storage medium. At the same time an inspection report is prepared.<\/p>\n<p>TESTS<\/p>\n<p>In accordance with PN-EN ISO 11296-1, PN-EN 13566-8[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/1&#8243;][vc_separator sep_color=&#8221;color-gyho&#8221;][vc_custom_heading sub_lead=&#8221;yes&#8221; subheading=&#8221;Diameters range: DN80 \u2013 no limits Non-pressure sewer pipes&#8221;]APPLICATION[\/vc_custom_heading][vc_separator sep_color=&#8221;color-gyho&#8221;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243;]DEFECT REMEDIATION[\/vc_custom_heading][vc_column_text]Any defects are made good using the main material of the applied chemical resistant mineral layer or using specialized materials.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/1&#8243;][uncode_block id=&#8221;74944&#8243;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row row_height_percent=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; border_color=&#8221;accent&#8221; border_style=&#8221;solid&#8221; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; css=&#8221;.vc_custom_1548944632644{border-top-width: 12px !important;}&#8221;][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243; text_weight=&#8221;300&#8243; subheading=&#8221;in accordance with PN-EN [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-75314","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/pages\/75314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/comments?post=75314"}],"version-history":[{"count":0,"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/pages\/75314\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.blejkan.pl\/en\/wp-json\/wp\/v2\/media?parent=75314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}