A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Limestone calcined clay cement (LC3) building composition
A limestone calcined clay cement building composition comprising a) a gelling binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, a Bladen surface area of at least 3800 cm2/g in an amount of 180 to 400 kg per m3 of freshly mixed building composition; b) a supplemental cementitious material having a Dv90 of less than 200 [mu] m, in a total amount of 50 to 100 parts by weight, comprising (b-1) a calcined clay material and (b-2) carbonatite powder with respect to 100 parts by weight of the cementitious binder a), the weight ratio of (b-1) to (b-2) being in the range of 0.5 to 2; c) optionally, a foreign aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3% to 2.5% by weight, relative to the amount of gelling adhesive a). The present invention relates to a composition containing, in terms of Al (OH) 4-, available aluminate salts from a calcium aluminate mineral phase together with an optional foreign aluminate source, in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 180 to less than 220 kg per m3 of freshly mixed composition, and in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 220 to less than 280 kg per m3 of freshly mixed composition, in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 220 to less than 280 kg per m3 of freshly mixed composition. A total amount of gelling adhesive a) is at least 0.06 mol per 100 g of gelling adhesive a) if the amount of gelling adhesive a) is 280 kg or more per m3 of the freshly mixed composition, and a total amount of gelling adhesive a) is at least 0.05 mol per 100 g of gelling adhesive a) if the amount of gelling adhesive a) is 280 kg or more per m3 of the freshly mixed composition; the total available aluminate to sulfate molar ratio is from 0.4 to 2.0. The building composition further comprises f) an ettringite formation control agent comprising (i) glyoxylic acid, a glyoxylate and/or a glyoxylic acid derivative; and (ii) at least one of (iii-a) a borate source and (iii-b) a carbonate source, wherein the carbonate source is selected from the group consisting of inorganic carbonates having a water solubility of 0.1 g.L <-1 > or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from the group consisting of (g-1) alpha-hydroxymonocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The limestone calcined clay cement building composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time, and high durability. The components of the building composition are obtainable in large quantities.
一种石灰石煅烧粘土水泥建筑组合物，包含a)胶凝粘合剂，其包含一种或更多种硅酸钙矿物相和一种或更多种铝酸钙矿物相，布莱恩表面积为至少3800cm2/g，量为每m3新拌建筑组合物180至400kg；b)补充胶凝材料，其Dv90小于200μm，总量为50至100重量份，相对于100重量份的胶凝粘合剂a)计，所述补充胶凝材料包含(b‑1)煅烧粘土材料和(b‑2)碳酸盐岩粉，(b‑1)与(b‑2)的重量比在0.5至2的范围之内；c)任选地，外来的铝酸盐源；d)硫酸盐源；以及e)多元醇，其量为0.3重量％至2.5重量％，相对于胶凝粘合剂a)的量计。所述组合物含有以Al(OH)4‑计的可用铝酸盐，所述可用铝酸盐来自铝酸钙矿物相加上任选的外来的铝酸盐源，如果胶凝粘合剂a)的量为每m3新拌组合物180至小于220kg，则其总量为每100g胶凝粘合剂a)至少0.08mol，如果胶凝粘合剂a)的量为每m3新拌组合物220至小于280kg，则其总量为每100g胶凝粘合剂a)至少0.06mol，以及如果胶凝粘合剂a)的量为每m3新拌组合物280kg或更多，则其总量为每100g胶凝粘合剂a)至少0.05mol；总可用铝酸盐与硫酸盐的摩尔比为0.4至2.0。所述建筑组合物还包含f)钙矾石形成控制剂，其包含(i)乙醛酸、乙醛酸盐和/或乙醛酸衍生物；以及(ii)(ii‑a)硼酸盐源和(ii‑b)碳酸盐源中的至少一种，其中碳酸盐源选自水溶解度为0.1g·L‑1或更高的无机碳酸盐、有机碳酸酯及其混合物；以及g)共缓凝剂，其选自(g‑1)α‑羟基单羧酸及其盐，(g‑2)膦酸及其盐，(g‑3)多羧酸及其盐，以及它们的混合物。所述石灰石煅烧粘土水泥建筑组合物是一种减少碳足迹的组合物，并展现出高的早期强度、高的最终强度、充足的开放时间和高的耐久性。所述建筑组合物的成分是可大量获得的。
Limestone calcined clay cement (LC3) building composition
A limestone calcined clay cement building composition comprising a) a gelling binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, a Bladen surface area of at least 3800 cm2/g in an amount of 180 to 400 kg per m3 of freshly mixed building composition; b) a supplemental cementitious material having a Dv90 of less than 200 [mu] m, in a total amount of 50 to 100 parts by weight, comprising (b-1) a calcined clay material and (b-2) carbonatite powder with respect to 100 parts by weight of the cementitious binder a), the weight ratio of (b-1) to (b-2) being in the range of 0.5 to 2; c) optionally, a foreign aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3% to 2.5% by weight, relative to the amount of gelling adhesive a). The present invention relates to a composition containing, in terms of Al (OH) 4-, available aluminate salts from a calcium aluminate mineral phase together with an optional foreign aluminate source, in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 180 to less than 220 kg per m3 of freshly mixed composition, and in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 220 to less than 280 kg per m3 of freshly mixed composition, in a total amount of at least 0.08 mol per 100 g of gelling binder a) if the amount of gelling binder a) is 220 to less than 280 kg per m3 of freshly mixed composition. A total amount of gelling adhesive a) is at least 0.06 mol per 100 g of gelling adhesive a) if the amount of gelling adhesive a) is 280 kg or more per m3 of the freshly mixed composition, and a total amount of gelling adhesive a) is at least 0.05 mol per 100 g of gelling adhesive a) if the amount of gelling adhesive a) is 280 kg or more per m3 of the freshly mixed composition; the total available aluminate to sulfate molar ratio is from 0.4 to 2.0. The building composition further comprises f) an ettringite formation control agent comprising (i) glyoxylic acid, a glyoxylate and/or a glyoxylic acid derivative; and (ii) at least one of (iii-a) a borate source and (iii-b) a carbonate source, wherein the carbonate source is selected from the group consisting of inorganic carbonates having a water solubility of 0.1 g.L <-1 > or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from the group consisting of (g-1) alpha-hydroxymonocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The limestone calcined clay cement building composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time, and high durability. The components of the building composition are obtainable in large quantities.
一种石灰石煅烧粘土水泥建筑组合物，包含a)胶凝粘合剂，其包含一种或更多种硅酸钙矿物相和一种或更多种铝酸钙矿物相，布莱恩表面积为至少3800cm2/g，量为每m3新拌建筑组合物180至400kg；b)补充胶凝材料，其Dv90小于200μm，总量为50至100重量份，相对于100重量份的胶凝粘合剂a)计，所述补充胶凝材料包含(b‑1)煅烧粘土材料和(b‑2)碳酸盐岩粉，(b‑1)与(b‑2)的重量比在0.5至2的范围之内；c)任选地，外来的铝酸盐源；d)硫酸盐源；以及e)多元醇，其量为0.3重量％至2.5重量％，相对于胶凝粘合剂a)的量计。所述组合物含有以Al(OH)4‑计的可用铝酸盐，所述可用铝酸盐来自铝酸钙矿物相加上任选的外来的铝酸盐源，如果胶凝粘合剂a)的量为每m3新拌组合物180至小于220kg，则其总量为每100g胶凝粘合剂a)至少0.08mol，如果胶凝粘合剂a)的量为每m3新拌组合物220至小于280kg，则其总量为每100g胶凝粘合剂a)至少0.06mol，以及如果胶凝粘合剂a)的量为每m3新拌组合物280kg或更多，则其总量为每100g胶凝粘合剂a)至少0.05mol；总可用铝酸盐与硫酸盐的摩尔比为0.4至2.0。所述建筑组合物还包含f)钙矾石形成控制剂，其包含(i)乙醛酸、乙醛酸盐和/或乙醛酸衍生物；以及(ii)(ii‑a)硼酸盐源和(ii‑b)碳酸盐源中的至少一种，其中碳酸盐源选自水溶解度为0.1g·L‑1或更高的无机碳酸盐、有机碳酸酯及其混合物；以及g)共缓凝剂，其选自(g‑1)α‑羟基单羧酸及其盐，(g‑2)膦酸及其盐，(g‑3)多羧酸及其盐，以及它们的混合物。所述石灰石煅烧粘土水泥建筑组合物是一种减少碳足迹的组合物，并展现出高的早期强度、高的最终强度、充足的开放时间和高的耐久性。所述建筑组合物的成分是可大量获得的。
Limestone calcined clay cement (LC3) building composition
石灰石煅烧粘土水泥(LC3)建筑组合物
BANDIRA MICHAL (author) / SCHWESIG PETER (author) / SACHSENHAUSER BERND (author) / DESUS SEBASTIEN (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
| European Patent Office | 2023
Limestone calcined clay cement (LC3) construction composition
| European Patent Office | 2023
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
| European Patent Office | 2022
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
| European Patent Office | 2024