Interior Lining<\/h1><\/div>to prevent chemical attack of water on the pipe<\/h2><\/div><\/div><\/div><\/div><\/div>The interior lining is the key to preventing chemical attack of water on the pipe<\/strong>. It must also be able to withstand abrasion from suspended particles<\/strong>. And, very importantly, its roughness must be low<\/strong> to offer little resistance to the passage of water, minimizing pressure losses.<\/p>\nOur pipes are internally lined with a compact and resistant layer of cement mortar<\/strong>, according to ISO 2531 and EN 545 standards, applied in accordance with ISO 4179.<\/p>\nAt CONSTRUTEC, we are committed to the integrity of the quality of the cement lining of our pipes to ensure their optimal handling and transport<\/strong> to any part of the world.<\/p>\n<\/div><\/div><\/div>![](\"https:\/\/construtec.com\/wp-content\/uploads\/2020\/06\/int.jpg\" "\\"int\\"")
<\/span><\/div><\/div><\/div><\/div><\/div>Types of Interior Linings<\/h3><\/div><\/div><\/div>Water Supply \/ Drinking Water<\/h5><\/div>\n- Sulfate Resistant Cement (SRC)<\/li>\n
- Blast Furnace Slag Cement (BFC)<\/li>\n
- Ordinary Portland Cement (OPC), consonant with ISO 2531 and EN 545 standards and applied according to ISO 4179<\/li>\n<\/ul>\n<\/div><\/div><\/div>
Sanitation \/ Sewerage<\/h5><\/div>\n- High Alumina Cement HAC consonant with ISO 7186 and EN 598 standards<\/li>\n
- Polyurethane according to EN 15655 standard<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div>
Technical Specifications of the Internal Coatings<\/span><\/h3><\/div><\/div><\/div>Chemical Alliance<\/h6><\/div>One of the surprising advantages of the internal mortar lining is that, in addition to being an evident physical protection<\/strong>, it also constitutes chemical protection<\/strong>.<\/p>\n<\/div><\/div><\/div>Head Loss<\/h6><\/div>The head loss in the pipeline is reduced to a minimum<\/strong>. Furthermore, unlike other materials, there is no degradation over time. On the other hand, it is completely immune to biological attack<\/strong> and exhibits excellent behavior under thermal stress<\/strong>.<\/p>\n<\/div><\/div><\/div>Roughness<\/h6><\/div>The internal mortar lining is applied in the factory at a centrifugation speed with a ‘G’ value greater than 60 G. As it is cured in the plant under controlled conditions, its low roughness and resistance to impacts and abrasion are ensured<\/strong>. The resulting roughness is extremely low<\/strong> compared to any other material.<\/p>\n<\/div>\n\n\n\n\tAbsolute roughness<\/th> C (Hazen-Williams)<\/th> n (Manning)<\/th>\n<\/tr>\n<\/thead>\n \n\n\t\u2248 0,030 mm<\/td> \u2248 140<\/td> \u2248 0,0088<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<\/div><\/div><\/div><\/div><\/div>Why is cement mortar applied as an internal protection against corrosion in ductile iron pipes?<\/h3><\/div>
to prevent chemical attack of water on the pipe<\/h2><\/div><\/div><\/div><\/div><\/div>The interior lining is the key to preventing chemical attack of water on the pipe<\/strong>. It must also be able to withstand abrasion from suspended particles<\/strong>. And, very importantly, its roughness must be low<\/strong> to offer little resistance to the passage of water, minimizing pressure losses.<\/p>\nOur pipes are internally lined with a compact and resistant layer of cement mortar<\/strong>, according to ISO 2531 and EN 545 standards, applied in accordance with ISO 4179.<\/p>\nAt CONSTRUTEC, we are committed to the integrity of the quality of the cement lining of our pipes to ensure their optimal handling and transport<\/strong> to any part of the world.<\/p>\n<\/div><\/div><\/div><\/span><\/div><\/div><\/div><\/div><\/div>Types of Interior Linings<\/h3><\/div><\/div><\/div>Water Supply \/ Drinking Water<\/h5><\/div>\n- Sulfate Resistant Cement (SRC)<\/li>\n
- Blast Furnace Slag Cement (BFC)<\/li>\n
- Ordinary Portland Cement (OPC), consonant with ISO 2531 and EN 545 standards and applied according to ISO 4179<\/li>\n<\/ul>\n<\/div><\/div><\/div>
Sanitation \/ Sewerage<\/h5><\/div>\n- High Alumina Cement HAC consonant with ISO 7186 and EN 598 standards<\/li>\n
- Polyurethane according to EN 15655 standard<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div>
Technical Specifications of the Internal Coatings<\/span><\/h3><\/div><\/div><\/div>Chemical Alliance<\/h6><\/div>One of the surprising advantages of the internal mortar lining is that, in addition to being an evident physical protection<\/strong>, it also constitutes chemical protection<\/strong>.<\/p>\n<\/div><\/div><\/div>Head Loss<\/h6><\/div>The head loss in the pipeline is reduced to a minimum<\/strong>. Furthermore, unlike other materials, there is no degradation over time. On the other hand, it is completely immune to biological attack<\/strong> and exhibits excellent behavior under thermal stress<\/strong>.<\/p>\n<\/div><\/div><\/div>Roughness<\/h6><\/div>The internal mortar lining is applied in the factory at a centrifugation speed with a ‘G’ value greater than 60 G. As it is cured in the plant under controlled conditions, its low roughness and resistance to impacts and abrasion are ensured<\/strong>. The resulting roughness is extremely low<\/strong> compared to any other material.<\/p>\n<\/div>\n\n\n\n\tAbsolute roughness<\/th> C (Hazen-Williams)<\/th> n (Manning)<\/th>\n<\/tr>\n<\/thead>\n \n\n\t\u2248 0,030 mm<\/td> \u2248 140<\/td> \u2248 0,0088<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<\/div><\/div><\/div><\/div><\/div>Why is cement mortar applied as an internal protection against corrosion in ductile iron pipes?<\/h3><\/div>
The interior lining is the key to preventing chemical attack of water on the pipe<\/strong>. It must also be able to withstand abrasion from suspended particles<\/strong>. And, very importantly, its roughness must be low<\/strong> to offer little resistance to the passage of water, minimizing pressure losses.<\/p>\n Our pipes are internally lined with a compact and resistant layer of cement mortar<\/strong>, according to ISO 2531 and EN 545 standards, applied in accordance with ISO 4179.<\/p>\n At CONSTRUTEC, we are committed to the integrity of the quality of the cement lining of our pipes to ensure their optimal handling and transport<\/strong> to any part of the world.<\/p>\n<\/div><\/div><\/div> One of the surprising advantages of the internal mortar lining is that, in addition to being an evident physical protection<\/strong>, it also constitutes chemical protection<\/strong>.<\/p>\n<\/div><\/div><\/div> The head loss in the pipeline is reduced to a minimum<\/strong>. Furthermore, unlike other materials, there is no degradation over time. On the other hand, it is completely immune to biological attack<\/strong> and exhibits excellent behavior under thermal stress<\/strong>.<\/p>\n<\/div><\/div><\/div> The internal mortar lining is applied in the factory at a centrifugation speed with a ‘G’ value greater than 60 G. As it is cured in the plant under controlled conditions, its low roughness and resistance to impacts and abrasion are ensured<\/strong>. The resulting roughness is extremely low<\/strong> compared to any other material.<\/p>\n<\/div><\/span><\/div><\/div><\/div><\/div><\/div>Types of Interior Linings<\/h3><\/div><\/div><\/div>
Water Supply \/ Drinking Water<\/h5><\/div>
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Sanitation \/ Sewerage<\/h5><\/div>
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Technical Specifications of the Internal Coatings<\/span><\/h3><\/div><\/div><\/div>
Chemical Alliance<\/h6><\/div>
Head Loss<\/h6><\/div>
Roughness<\/h6><\/div>
\n\n
\n\t \nAbsolute roughness<\/th> C (Hazen-Williams)<\/th> n (Manning)<\/th>\n<\/tr>\n<\/thead>\n \n\t \u2248 0,030 mm<\/td> \u2248 140<\/td> \u2248 0,0088<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<\/div><\/div><\/div><\/div><\/div> Why is cement mortar applied as an internal protection against corrosion in ductile iron pipes?<\/h3><\/div>
![](\"https:\/\/construtec.com\/wp-content\/uploads\/2020\/06\/UUU.jpg\" "\\"UUU\\"")
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