Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-viscosity and high-elasticity modified emulsified asphalt, preparation method thereof and construction method of cold-mixed ultrathin overlay
The invention provides a preparation method of high-viscosity and high-elasticity modified emulsified asphalt, which comprises the following steps: S1, heating 83-93.5 parts by weight of matrix asphalt to 170-190 DEG C, then adding 3-8 parts by weight of SBS, 1-3 parts by weight of aromatic hydrocarbon oil, 0.5-2 parts by weight of tackifier c9 and 0.5-2 parts by weight of tackifier terpene, continuously heating to 180-190 DEG C, keeping for 8-15 minutes, and then shearing by a colloid mill to obtain modified asphalt; after shearing, introducing into a reaction tank, and preserving heat at 170-190 DEG C for 3-7 hours to obtain SBS modified asphalt; s2, dissolving 4-9 parts by weight of a cationic emulsifier, 0.1-0.2 part by weight of calcium chloride and 0.1-0.2 part by weight of polyvinyl alcohol in water to prepare an emulsifier aqueous solution; s3, carrying out shear emulsification on 60-70 parts by weight of SBS modified asphalt and 40-30 parts by weight of an emulsifier aqueous solution; and S4, continuing to add 2.5 parts by weight of SBR (styrene butadiene rubber) latex into the storage tank in S3. The performance of the high-viscosity and high-elasticity modified emulsified asphalt is improved, and the high-viscosity and high-elasticity modified emulsified asphalt can be used for a construction method of a cold-mixed ultrathin overlay.
本发明提供了一种高粘高弹改性乳化沥青的制备方法，其包括如下步骤：S1、将83‑93.5重量份的基质沥青加热至170‑190℃，然后加入3‑8重量份的SBS、1‑3重量份的芳烃油、0.5‑2重量份的增粘剂c9、0.5‑2份的增粘剂萜烯，继续升温至180‑190℃并保持8‑15min，然后进行胶体磨剪切，剪切后导入反应罐在170‑190℃保温3‑7h，制得SBS改性沥青；S2、将4‑9重量份的阳离子型乳化剂、0.1‑0.2重量份的氯化钙、0.1‑0.2重量份的聚乙烯醇加水溶解，制得乳化剂水溶液；S3、将60‑70重量份的SBS改性沥青和40‑30重量份的乳化剂水溶液一同进行剪切乳化；S4、然后继续向S3中储存罐中加入2.5重量份的SBR丁苯橡胶胶乳。本发明所得一种高粘高弹改性乳化沥青，性能得以提升，可以用于一种冷拌超薄罩面的施工方法。
High-viscosity and high-elasticity modified emulsified asphalt, preparation method thereof and construction method of cold-mixed ultrathin overlay
The invention provides a preparation method of high-viscosity and high-elasticity modified emulsified asphalt, which comprises the following steps: S1, heating 83-93.5 parts by weight of matrix asphalt to 170-190 DEG C, then adding 3-8 parts by weight of SBS, 1-3 parts by weight of aromatic hydrocarbon oil, 0.5-2 parts by weight of tackifier c9 and 0.5-2 parts by weight of tackifier terpene, continuously heating to 180-190 DEG C, keeping for 8-15 minutes, and then shearing by a colloid mill to obtain modified asphalt; after shearing, introducing into a reaction tank, and preserving heat at 170-190 DEG C for 3-7 hours to obtain SBS modified asphalt; s2, dissolving 4-9 parts by weight of a cationic emulsifier, 0.1-0.2 part by weight of calcium chloride and 0.1-0.2 part by weight of polyvinyl alcohol in water to prepare an emulsifier aqueous solution; s3, carrying out shear emulsification on 60-70 parts by weight of SBS modified asphalt and 40-30 parts by weight of an emulsifier aqueous solution; and S4, continuing to add 2.5 parts by weight of SBR (styrene butadiene rubber) latex into the storage tank in S3. The performance of the high-viscosity and high-elasticity modified emulsified asphalt is improved, and the high-viscosity and high-elasticity modified emulsified asphalt can be used for a construction method of a cold-mixed ultrathin overlay.
本发明提供了一种高粘高弹改性乳化沥青的制备方法，其包括如下步骤：S1、将83‑93.5重量份的基质沥青加热至170‑190℃，然后加入3‑8重量份的SBS、1‑3重量份的芳烃油、0.5‑2重量份的增粘剂c9、0.5‑2份的增粘剂萜烯，继续升温至180‑190℃并保持8‑15min，然后进行胶体磨剪切，剪切后导入反应罐在170‑190℃保温3‑7h，制得SBS改性沥青；S2、将4‑9重量份的阳离子型乳化剂、0.1‑0.2重量份的氯化钙、0.1‑0.2重量份的聚乙烯醇加水溶解，制得乳化剂水溶液；S3、将60‑70重量份的SBS改性沥青和40‑30重量份的乳化剂水溶液一同进行剪切乳化；S4、然后继续向S3中储存罐中加入2.5重量份的SBR丁苯橡胶胶乳。本发明所得一种高粘高弹改性乳化沥青，性能得以提升，可以用于一种冷拌超薄罩面的施工方法。
High-viscosity and high-elasticity modified emulsified asphalt, preparation method thereof and construction method of cold-mixed ultrathin overlay
一种高粘高弹改性乳化沥青及其制备方法和冷拌超薄罩面的施工方法
LIU JIAN (Autor:in) / LEI ZONGJIAN (Autor:in) / ZHU HONGFEI (Autor:in) / ZHANG GUANHAO (Autor:in) / ZHANG WEI (Autor:in) / ZHANG JUN (Autor:in) / ZHONG YAOXING (Autor:in)
15.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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