{"product_id":"densifer325-pumice-pozzolan","title":"Densifer325™ Pumice Pozzolan","description":"\u003cp\u003e\u003cstrong\u003eDensifer325 \u003c\/strong\u003e(Standard Pozz)\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003ePozzolans are a class of supplemental cementitious materials (SCMs) that supercharge concrete performance. Pumice, in particular, is an excellent pozzolan. Used at a 15 to 20% replacement rate for Portland cement, the finely ground pumice pozzolan works to drastically reduce, even eliminate, by-product CH by coverting it to CSH. More CSH means more binder. That means more density in the concrete matrix, more long-term strength, less permeability (becomes highly resistant to chemical attacks and freeze-thaw-process damage), reduced heat of hydration cracking, and flatlined alkali silica reaction. All that adds up to high-performance concrete durability.\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTypical Applications:\u003c\/strong\u003e \u003c\/span\u003eA highly-effective natural pozzolan for precast concrete products, formed-and-cast concrete construction like walls, piers and foundations as well as shotcretes, cementitious grouts, plasters, mortars. Densifier325™ is a must in regions with reactive aggregates that cause ASR and in locations with high-sulfate soils or in applications subject to sulfate and\/or chloride attacks. Also effective in high abrasive and freeze-thaw environments. Use with lightweight pumice aggregate concrete to prevent ASR.\u003c\/p\u003e","brand":"Hess Pumice Products","offers":[{"title":"1 lb. (resealable bag)","offer_id":67747633463396,"sku":"qrf1792314893827","price":4.35,"currency_code":"USD","in_stock":true},{"title":"2.5 lbs. (resealable bag)","offer_id":67747633496164,"sku":"wtd1792314893828","price":8.03,"currency_code":"USD","in_stock":true},{"title":"5 lbs. (2 resealable bags)","offer_id":67747633528932,"sku":"jka1792314893829","price":9.98,"currency_code":"USD","in_stock":true},{"title":"20 lbs. (box)","offer_id":67747633561700,"sku":"zbq1792314893830","price":13.02,"currency_code":"USD","in_stock":true},{"title":"45 lbs. (full-sized production bag)","offer_id":67747633594468,"sku":"civ1792314893831","price":16.64,"currency_code":"USD","in_stock":true},{"title":"135+ lbs. (contact us)","offer_id":67747633627236,"sku":"kav1792314893832","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/9387\/3764\/files\/densifer325-pumice-pozzolan_1.jpg?v=1792314898","url":"https:\/\/www.xalveruno.com\/products\/densifer325-pumice-pozzolan","provider":"Xalveruno","version":"1.0","type":"link"}