{"id":718,"date":"2020-09-08T15:43:14","date_gmt":"2020-09-08T15:43:14","guid":{"rendered":"https:\/\/dumoulinetassocies.com\/?page_id=718"},"modified":"2021-03-23T02:14:05","modified_gmt":"2021-03-23T02:14:05","slug":"curling-of-concrete-slabs","status":"publish","type":"page","link":"https:\/\/dumoulinetassocies.com\/en\/curling-of-concrete-slabs\/","title":{"rendered":"Curling of Concrete Slabs"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row unlock_row_content=&#8221;yes&#8221; row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;0&#8243; top_padding=&#8221;0&#8243; bottom_padding=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;0&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;10&#8243; el_class=&#8221;firstsection&#8221; css=&#8221;.vc_custom_1598034744195{margin-top: -100px !important;}&#8221;][vc_column column_width_percent=&#8221;100&#8243; gutter_size=&#8221;0&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;0&#8243; back_color=&#8221;accent&#8221; back_image=&#8221;320&#8243; back_repeat=&#8221;no-repeat&#8221; back_position=&#8221;left top&#8221; parallax=&#8221;yes&#8221; overlay_color=&#8221;accent&#8221; overlay_alpha=&#8221;0&#8243; shift_x=&#8221;-4&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;left-t-right&#8221; animation_speed=&#8221;400&#8243; width=&#8221;1\/1&#8243; css=&#8221;.vc_custom_1599488663262{padding-right: 30px !important;}&#8221;][vc_row_inner row_inner_height_percent=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;0&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; css=&#8221;.vc_custom_1598031408868{padding-top: 60px !important;padding-right: 25px !important;padding-bottom: 60px !important;padding-left: 25px !important;}&#8221;][vc_column_inner column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; animation_speed=&#8221;400&#8243; animation_delay=&#8221;200&#8243; width=&#8221;6\/12&#8243; el_class=&#8221;firstcolumn&#8221;][vc_column_text]The improper or rushed curing of concrete slabs have a tendency to cause lifting near joints or along the perimeter of slabs, which can sometimes cause the slab to lose contact with the underlying fill material.[\/vc_column_text][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; animation_delay=&#8221;600&#8243; width=&#8221;6\/12&#8243; el_class=&#8221;iconcolumn&#8221;][vc_icon position=&#8221;left&#8221; title_aligned_icon=&#8221;yes&#8221; icon_image=&#8221;468&#8243; icon_color=&#8221;color-xsdn&#8221; media_size=&#8221;95&#8243; title=&#8221;Proven Procedures&#8221; el_class=&#8221;iconboxelement&#8221;]Dumoulin &amp; Associates uses injection grouting to fill the void beneath the slab.[\/vc_icon][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;7&#8243; bottom_padding=&#8221;6&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;left-t-right&#8221; width=&#8221;7\/12&#8243; el_class=&#8221;imagecol&#8221;][vc_single_image media=&#8221;1440&#8243; media_width_percent=&#8221;100&#8243; alignment=&#8221;center&#8221; shadow=&#8221;yes&#8221; shadow_weight=&#8221;sm&#8221;][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;alpha-anim&#8221; animation_delay=&#8221;400&#8243; width=&#8221;5\/12&#8243; el_class=&#8221;tabletmargin rightfirsttext&#8221;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243; text_color=&#8221;color-prif&#8221; separator=&#8221;yes&#8221;]A necessary repair[\/vc_custom_heading][vc_column_text]In industrial buildings, such as factories and warehouses, concrete floors must remain smooth and flat to allow for proper operations of material handling equipment. For a forklift, as little as rolling over a curling joint can make it scrape the floor and damage its wheels.<\/p>\n<p>In a similar fashion, the edges of a slab can chip or crack if the foundation supporting it erodes.<\/p>\n<p>Under these conditions, the floors can deteriorate rapidly, <strong>therefore causing security problems.<\/strong><\/p>\n<p>Don\u2019t wait![\/vc_column_text][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;2&#8243; bottom_padding=&#8221;6&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; inverted_device_order=&#8221;yes&#8221; el_class=&#8221;secondimagetext&#8221;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;alpha-anim&#8221; animation_delay=&#8221;400&#8243; width=&#8221;5\/12&#8243; el_class=&#8221;tabletmargin leftfirsttext&#8221;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243; text_color=&#8221;color-prif&#8221; separator=&#8221;yes&#8221;]The main reason for curling[\/vc_custom_heading][vc_column_text]The curling of foundation slabs is mainly caused by differential shrinkage that happens when the exposed surface retracts with respect to the core, which doesn\u2019t move.<\/p>\n<p>This shrinkage is usually attributed to drying, but it can also be caused by carbonation of the concrete surface or, in the case of concrete rich in high strength cement, by internal drying (autogenous shrinkage) that happened during the hydration of the cement paste.<\/p>\n<p>It is important to repair the slab that curled before it erodes the joints and causes more damage.[\/vc_column_text][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;7\/12&#8243; el_class=&#8221;middleimage&#8221;][vc_single_image media=&#8221;1649&#8243; media_width_percent=&#8221;95&#8243; alignment=&#8221;center&#8221; css_animation=&#8221;right-t-left&#8221;][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;2&#8243; bottom_padding=&#8221;5&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; desktop_visibility=&#8221;yes&#8221; medium_visibility=&#8221;yes&#8221; mobile_visibility=&#8221;yes&#8221; el_class=&#8221;thirdimagetext&#8221; shape_dividers=&#8221;&#8221;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;left-t-right&#8221; width=&#8221;7\/12&#8243; el_class=&#8221;imagecol&#8221;][vc_single_image media=&#8221;702&#8243; media_width_percent=&#8221;100&#8243; alignment=&#8221;center&#8221; shadow=&#8221;yes&#8221; shadow_weight=&#8221;sm&#8221;][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;alpha-anim&#8221; animation_delay=&#8221;400&#8243; width=&#8221;5\/12&#8243; el_class=&#8221;singletext rightfirsttext&#8221;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243; text_color=&#8221;color-prif&#8221; separator=&#8221;yes&#8221;]Steel treatment[\/vc_custom_heading][vc_column_text]It is necessary to apply a corrosion inhibitor to eliminate rust on the reinforcing steel. The minimum thickness of the coating must be respected as part of the concrete restoration plan because the reinforcing steel would need replacement if they are too corroded.<\/p>\n<p>The application of sacrificial anodes can also be considered. This new technique requires installing anodes specifically developed to corrode before the reinforcing steel, thus protecting the concrete structure.[\/vc_column_text][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;2&#8243; bottom_padding=&#8221;5&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;2&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243;][vc_column column_width_percent=&#8221;100&#8243; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;3&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;left-t-right&#8221; width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1600041279534{padding-right: 30px !important;}&#8221;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243; text_color=&#8221;color-prif&#8221; separator=&#8221;yes&#8221; el_class=&#8221;surfacetitle&#8221;]A reliable technique[\/vc_custom_heading][vc_column_text]The local repair technique that we use consists of tackling voids beneath the slab with grout and then repairing the raised sections. To do this, we correct the perimeter of the raised area with a saw and remove concrete until the desired surface is obtained. We fill the consequently formed cavity and, finally, apply a flexible sealant to the crack or joint.[\/vc_column_text][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; width=&#8221;1\/4&#8243;][vc_column_text]<em><span style=\"font-size: 16px; font-weight: 500; text-align: center;\">Injection grouting into voids<\/span><\/em>[\/vc_column_text][vc_single_image media=&#8221;1656&#8243; media_width_use_pixel=&#8221;yes&#8221; alignment=&#8221;center&#8221; media_width_pixel=&#8221;220&#8243;][vc_empty_space empty_h=&#8221;2&#8243; el_class=&#8221;tabletspace&#8221;][vc_column_text]<em><span style=\"font-size: 16px; font-weight: 500; text-align: center;\">New cut and joint filling<\/span><\/em>[\/vc_column_text][vc_single_image media=&#8221;1658&#8243; media_width_use_pixel=&#8221;yes&#8221; alignment=&#8221;center&#8221; media_width_pixel=&#8221;220&#8243;][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; width=&#8221;1\/4&#8243;][vc_column_text]<em><span style=\"font-size: 16px; font-weight: 500; text-align: center;\">Saw cutting and mortar filling<\/span><\/em>[\/vc_column_text][vc_single_image media=&#8221;1657&#8243; media_width_use_pixel=&#8221;yes&#8221; alignment=&#8221;center&#8221; media_width_pixel=&#8221;220&#8243;][vc_empty_space empty_h=&#8221;2&#8243; el_class=&#8221;tabletspace&#8221;][vc_column_text]<em><span style=\"font-size: 16px; font-weight: 500; text-align: center;\">Result: smooth and levelled joint<\/span><\/em>[\/vc_column_text][vc_single_image media=&#8221;1659&#8243; media_width_use_pixel=&#8221;yes&#8221; alignment=&#8221;center&#8221; media_width_pixel=&#8221;220&#8243;][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; back_image=&#8221;290&#8243; back_repeat=&#8221;no-repeat&#8221; back_position=&#8221;center center&#8221; overlay_color=&#8221;accent&#8221; overlay_alpha=&#8221;75&#8243; overlay_color_blend=&#8221;multiply&#8221; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; el_class=&#8221;historycta&#8221;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;3&#8243; shift_y_down=&#8221;3&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243;][vc_row_inner][vc_column_inner column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; width=&#8221;1\/1&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; text_size=&#8221;h3&#8243; text_weight=&#8221;400&#8243; text_color=&#8221;color-xsdn&#8221;]Get a FREE evaluation on your commercial project. <strong>Let\u2019s get started.<\/strong>[\/vc_custom_heading][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner width=&#8221;1\/3&#8243;][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; 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