A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underwater shrinkage-free concrete and preparation method thereof
The invention discloses underwater shrinkage-free concrete and a preparation method thereof. The concrete comprises the following raw materials in parts by weight: 130-200 parts of a cementing material; 450 to 650 parts of broken stone; 300 to 500 parts of sand; 50 to 90 parts of water; 3-6 parts of a water reducing agent; 2 to 4 parts of a UEA expanding agent; 15-30 parts of modified spherical aluminum oxide; the modified spherical aluminum oxide is prepared by grafting and modifying spherical aluminum oxide and a modifier in absolute ethyl alcohol according to the weight ratio of 100: (3-6); the modifier is prepared by adopting liquid iso-tridecanol polyoxyethylene ether and dimethyldimethoxysilane as raw materials according to a molar ratio of 1: 1 and heating and reacting under the catalysis of dodecylbenzene sulfonic acid. The underwater concrete provided by the invention has good shrinkage resistance and self-compacting performance.
本申请公开了一种水下无收缩混凝土及其制备方法，该混凝土包括如下重量份的原料：胶凝材料：130～200份；碎石：450～650份；砂子：300～500份；水：50～90份；减水剂：3～6份；UEA膨胀剂：2～4份；改性球形氧化铝：15～30份；所述改性球形氧化铝由重量比为100：（3～6）的球形氧化铝和改性剂在无水乙醇中接枝改性制得；所述改性剂采用摩尔比为1:1的液态异构十三醇聚氧乙烯醚和二甲基二甲氧基硅烷为原料，并在十二烷基苯磺酸的催化下加热反应制得。本申请的水下混凝土具有良好的抗收缩性能与自密实性能。
Underwater shrinkage-free concrete and preparation method thereof
The invention discloses underwater shrinkage-free concrete and a preparation method thereof. The concrete comprises the following raw materials in parts by weight: 130-200 parts of a cementing material; 450 to 650 parts of broken stone; 300 to 500 parts of sand; 50 to 90 parts of water; 3-6 parts of a water reducing agent; 2 to 4 parts of a UEA expanding agent; 15-30 parts of modified spherical aluminum oxide; the modified spherical aluminum oxide is prepared by grafting and modifying spherical aluminum oxide and a modifier in absolute ethyl alcohol according to the weight ratio of 100: (3-6); the modifier is prepared by adopting liquid iso-tridecanol polyoxyethylene ether and dimethyldimethoxysilane as raw materials according to a molar ratio of 1: 1 and heating and reacting under the catalysis of dodecylbenzene sulfonic acid. The underwater concrete provided by the invention has good shrinkage resistance and self-compacting performance.
本申请公开了一种水下无收缩混凝土及其制备方法，该混凝土包括如下重量份的原料：胶凝材料：130～200份；碎石：450～650份；砂子：300～500份；水：50～90份；减水剂：3～6份；UEA膨胀剂：2～4份；改性球形氧化铝：15～30份；所述改性球形氧化铝由重量比为100：（3～6）的球形氧化铝和改性剂在无水乙醇中接枝改性制得；所述改性剂采用摩尔比为1:1的液态异构十三醇聚氧乙烯醚和二甲基二甲氧基硅烷为原料，并在十二烷基苯磺酸的催化下加热反应制得。本申请的水下混凝土具有良好的抗收缩性能与自密实性能。
Underwater shrinkage-free concrete and preparation method thereof
一种水下无收缩混凝土及其制备方法
ZHENG JIANFU (author) / JIN XIN (author) / ZHANG QIAOGUAN (author)
2023-07-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Shrinkage-compensating concrete and preparation method thereof
| European Patent Office | 2024
Shrinkage-compensating concrete and preparation method thereof
| European Patent Office | 2023
Shrinkage-compensating concrete and preparation method thereof
| European Patent Office | 2020
Low-shrinkage recycled concrete and preparation method thereof
| European Patent Office | 2023
Low-shrinkage foam concrete and preparation method thereof
| European Patent Office | 2024