A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXPANSIVE ADMIXTURE, CEMENT COMPOSITION, AND, CONCRETE
To provide an expansive admixture capable of obtaining concrete with less cracks, etc., and excellent reliability, durability, and appearances, etc.SOLUTION: The expansive admixture contains free lime, a hydraulic substance, and anhydrous gypsum; wherein the expansive admixture is characterized by that, when the expansive admixture is regarded as 100 mass%, the percentage content of free lime is 80.0 mass% or over and 99.0 mass % or under, and an expansion ratio at day-7 of aging measured based on JIS A 6202 test method of an expansive material for concrete is 1000×10-6 or over.SELECTED DRAWING: None
【課題】ひび割れ等の少ない、信頼性、耐久性、及び美観等の観点に優れたコンクリートを得ることができる、膨張混和材を提供する。【解決手段】遊離石灰、水硬性物質、および、無水石膏を含有する膨張混和材であって、前記膨張混和材を１００質量％としたとき、遊離石灰の含有率が８０．０質量％以上、９９.０質量％以下であり、ＪＩＳ Ａ ６２０２のコンクリート用膨張材の試験方法に基づき測定される養生７日目における膨張率が１０００×１０−６以上である膨張混和材を提供する。【選択図】なし
EXPANSIVE ADMIXTURE, CEMENT COMPOSITION, AND, CONCRETE
To provide an expansive admixture capable of obtaining concrete with less cracks, etc., and excellent reliability, durability, and appearances, etc.SOLUTION: The expansive admixture contains free lime, a hydraulic substance, and anhydrous gypsum; wherein the expansive admixture is characterized by that, when the expansive admixture is regarded as 100 mass%, the percentage content of free lime is 80.0 mass% or over and 99.0 mass % or under, and an expansion ratio at day-7 of aging measured based on JIS A 6202 test method of an expansive material for concrete is 1000×10-6 or over.SELECTED DRAWING: None
【課題】ひび割れ等の少ない、信頼性、耐久性、及び美観等の観点に優れたコンクリートを得ることができる、膨張混和材を提供する。【解決手段】遊離石灰、水硬性物質、および、無水石膏を含有する膨張混和材であって、前記膨張混和材を１００質量％としたとき、遊離石灰の含有率が８０．０質量％以上、９９.０質量％以下であり、ＪＩＳ Ａ ６２０２のコンクリート用膨張材の試験方法に基づき測定される養生７日目における膨張率が１０００×１０−６以上である膨張混和材を提供する。【選択図】なし
EXPANSIVE ADMIXTURE, CEMENT COMPOSITION, AND, CONCRETE
膨張混和材、セメント組成物、及び、コンクリート
MAEDA TAKUMI (author) / MORI TAIICHIRO (author) / SHIMAZAKI DAIKI (author)
2020-09-24
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2019
CONCRETE EXPANSIVE ADMIXTURE USING LOW CARBON LOW BURNING CEMENT CLINKER
| European Patent Office | 2021