{"id":1959,"date":"2025-11-07T11:59:10","date_gmt":"2025-11-07T10:59:10","guid":{"rendered":"https:\/\/www.invator.se\/projekt\/condition-assessment-of-pools-and-water-tanks-leksand-sommarland\/"},"modified":"2026-04-10T11:34:38","modified_gmt":"2026-04-10T09:34:38","slug":"condition-assessment-of-pools-and-water-tanks-leksand-sommarland","status":"publish","type":"projekt","link":"https:\/\/www.invator.se\/en\/projekt\/condition-assessment-of-pools-and-water-tanks-leksand-sommarland\/","title":{"rendered":"Condition assessment of pools and water tanks – Leksand Sommarland"},"content":{"rendered":"\n

Problem statement<\/strong>The concrete structures in the Leksand Sommarland pool area (children’s pool, intermediate pool, north spring, south spring and water tanks) showed extensive cracking, voids, water leakage and erosion. As the facility is used intensively during the summer season and is exposed to large variations in temperature and moisture load, the aim of the project was to map the extent of the damage, analyze the causes and propose measures to ensure continued safe operation and long-term function. <\/p>\n\n

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The facility had extensive damage such as cracking, voids, water leakage and erosion.<\/em><\/figcaption>\n<\/figure>\n\n

<\/p>\n\n

Results<\/strong>The surveys showed that:<\/p>\n\n

The rapids had through cracks in the bottom plate and walls, probably from shrinkage and movements. The intermediate pool had voids under the slab as well as through cracks causing water leakage the structure has reached its technical life. <\/p>\n\n

The children’s pool had the most damage with voids, continuous cracks and undersized reinforcement (\u22056 mm c\/c 150 mm). The pool is recommended to be demolished and replaced. <\/p>\n\n

The southern inlet (pool and channel) had consistent cracks, voids and signs of active corrosion.<\/p>\n\n

The water tanks had weakened linings, cracks throughout and rusting of fixings. In conclusion, it was found that several structures had reached the end of their technical life and needed to be replaced, while others could be repaired with the right measures. <\/p>\n\n

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Cracking in the pool was investigated non-destructive methods such as GPR and MIRA.<\/em><\/figcaption>\n<\/figure>\n\n

<\/p>\n\n

Solution<\/strong>The condition assessment was carried out in several steps:<\/p>\n\n

    \n
  • Visual inspections and documentation.<\/li>\n\n\n\n
  • Non-destructive testing with GPR, Ultrasonic Pulse Echo (MIRA), UPV, Impulse Response, Sonreb and boom knocking.<\/li>\n\n\n\n
  • Partial destructive testing with chloride test, carbonation test and core drilling.<\/li>\n\n\n\n
  • Laboratory analysis including barrel grinding to determine concrete quality, frost resistance and vct.<\/li>\n<\/ul>\n\n
      \n
    • The results formed the basis for detailed recommendations:<\/li>\n\n\n\n
    • Demolition and new construction of the children’s pool, the intermediate pool and the southern spring (pool).<\/li>\n\n\n\n
    • Repair of cracks and coating of the rapids (gutters) with elastic material for pool use.<\/li>\n\n\n\n
    • Repair of the water tanks by water blasting, grouting and corrosion protection.<\/li>\n<\/ul>\n\n

      The methodology provided a complete picture of the status and a plan for sustainable action.<\/p>\n\n

      \"\"\n
      Drill sample in one of the pools for cavity analysis.<\/em><\/figcaption>\n<\/figure>\n\n

      <\/p>\n\n

      Equipment<\/strong><\/p>\n\n

        \n
      • Ground Penetrating Radar (Proceq GPR)<\/li>\n\n\n\n
      • Ultrasonic Pulse Echo (MIRA)<\/li>\n\n\n\n
      • Ultrasonic UPV + bouncing hammer (Sonreb)<\/li>\n\n\n\n
      • Impulse Response (IR)<\/li>\n\n\n\n
      • Bomb disposal<\/li>\n\n\n\n
      • Equipment for chloride tests, carbonation tests and core drilling<\/li>\n\n\n\n
      • Laboratory equipment for barrel grinding and concrete analysis<\/li>\n<\/ul>\n\n

        Standards<\/strong><\/p>\n\n

          \n
        • EN 1990: Eurocode – Basic design rules<\/li>\n\n\n\n
        • EN 1991-1-1: Eurocode 1 – Loads on structures<\/li>\n\n\n\n
        • EN 1992-1-1: Eurocode 2 – Concrete structures<\/li>\n\n\n\n
        • EN 1504 – Repair and protection of concrete structures<\/li>\n\n\n\n
        • ISO 16311-1\/2 – Condition assessment of concrete structures<\/li>\n\n\n\n
        • AMA Civil Engineering (performance standards)<\/li>\n<\/ul>\n\n

          <\/p>\n","protected":false},"excerpt":{"rendered":"

          At Leksand Sommarland, Invator carried out a comprehensive condition assessment of the pool and rafting facilities following extensive cracks, voids and leaks. The results showed that several structures had reached their technical lifespan – and provided a clear basis for repairs and new construction. <\/p>\n","protected":false},"featured_media":1758,"template":"","meta":{"_acf_changed":false},"bransch":[19],"class_list":["post-1959","projekt","type-projekt","status-publish","has-post-thumbnail","hentry","bransch-construction"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/projekt\/1959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/projekt"}],"about":[{"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/types\/projekt"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/media\/1758"}],"wp:attachment":[{"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/media?parent=1959"}],"wp:term":[{"taxonomy":"bransch","embeddable":true,"href":"https:\/\/www.invator.se\/en\/wp-json\/wp\/v2\/bransch?post=1959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}