Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bentonite modified aluminate inorganic anticorrosive mortar for pipe network repair and preparation method thereof
The invention discloses bentonite modified aluminate inorganic anticorrosive mortar for pipe network repair and a preparation method thereof. The preparation method comprises the following steps of preparing dry powder: mixing 100-120 parts by mass of Portland cement, 20-30 parts by mass of high-resistance aluminate cement, 60-80 parts by mass of quartz sand, 40-50 parts by mass of river sand, 1-5 parts by mass of a water reducing agent,1-3 parts by mass of steel fiber, and1-3 parts by mass ofpolyanionic cellulose, and uniformly stirring, continuously stirring the obtained dry powder, and adding 50-60 parts of water while stirring, adding 2-5 parts of self-made bentonite slurry, and stirring for 5-10 minutes at the speed of 200-400 r/min to form a mortar product. The self-made bentonite slurry is prepared by uniformly mixing 8-10 parts of high-viscosity bentonite, 0.2-0.5 part of sodium carbonate and 95-100 parts of water in proportion, stirring and puffing; the high-viscosity bentonite is high-viscosity organic bentonite prepared by modifying organic quaternary ammonium salt. By setting the components, the prepared mortar is higher in water-retaining property, thixotropy and adhesive capacity, shorter in setting time, higher in flexural and compressive strength and higher in corrosion resistance.
本发明公开了一种管网修复用膨润土改性铝酸盐无机防腐砂浆及其制备方法，包含以下步骤：配制干粉料，以质量份数计，将硅酸盐水泥100‑120份，高抗型铝酸盐水泥20‑30份，石英砂60‑80份，河沙40‑50份，减水剂1‑5份，钢纤维1‑3份，聚阴离子纤维素1‑3份混合并搅拌均匀；继续搅拌得到的干粉料，在搅拌同时加入水50‑60份；加入自制膨润土浆料2‑5份，在200‑400r/min下搅拌5‑10分钟，形成砂浆产品；自制膨润土浆料由高粘膨润土8‑10份，碳酸钠0.2‑0.5份，水95‑100份按比例均匀混合，搅拌后膨化即得；高粘膨润土为用有机季铵盐改性制备出高粘度有机膨润土。本发明通过对组分的设定，使制备的砂浆的保水性更强，触变性和附着能力更强，凝结时间更短，抗折抗压强度更高，耐腐蚀性更强。
Bentonite modified aluminate inorganic anticorrosive mortar for pipe network repair and preparation method thereof
The invention discloses bentonite modified aluminate inorganic anticorrosive mortar for pipe network repair and a preparation method thereof. The preparation method comprises the following steps of preparing dry powder: mixing 100-120 parts by mass of Portland cement, 20-30 parts by mass of high-resistance aluminate cement, 60-80 parts by mass of quartz sand, 40-50 parts by mass of river sand, 1-5 parts by mass of a water reducing agent,1-3 parts by mass of steel fiber, and1-3 parts by mass ofpolyanionic cellulose, and uniformly stirring, continuously stirring the obtained dry powder, and adding 50-60 parts of water while stirring, adding 2-5 parts of self-made bentonite slurry, and stirring for 5-10 minutes at the speed of 200-400 r/min to form a mortar product. The self-made bentonite slurry is prepared by uniformly mixing 8-10 parts of high-viscosity bentonite, 0.2-0.5 part of sodium carbonate and 95-100 parts of water in proportion, stirring and puffing; the high-viscosity bentonite is high-viscosity organic bentonite prepared by modifying organic quaternary ammonium salt. By setting the components, the prepared mortar is higher in water-retaining property, thixotropy and adhesive capacity, shorter in setting time, higher in flexural and compressive strength and higher in corrosion resistance.
本发明公开了一种管网修复用膨润土改性铝酸盐无机防腐砂浆及其制备方法，包含以下步骤：配制干粉料，以质量份数计，将硅酸盐水泥100‑120份，高抗型铝酸盐水泥20‑30份，石英砂60‑80份，河沙40‑50份，减水剂1‑5份，钢纤维1‑3份，聚阴离子纤维素1‑3份混合并搅拌均匀；继续搅拌得到的干粉料，在搅拌同时加入水50‑60份；加入自制膨润土浆料2‑5份，在200‑400r/min下搅拌5‑10分钟，形成砂浆产品；自制膨润土浆料由高粘膨润土8‑10份，碳酸钠0.2‑0.5份，水95‑100份按比例均匀混合，搅拌后膨化即得；高粘膨润土为用有机季铵盐改性制备出高粘度有机膨润土。本发明通过对组分的设定，使制备的砂浆的保水性更强，触变性和附着能力更强，凝结时间更短，抗折抗压强度更高，耐腐蚀性更强。
Bentonite modified aluminate inorganic anticorrosive mortar for pipe network repair and preparation method thereof
一种管网修复用膨润土改性铝酸盐无机防腐砂浆及其制备方法
SUN DONGXIAO (Autor:in) / CHEN QIANBAO (Autor:in) / LIU XUEMING (Autor:in) / SU WEIBIN (Autor:in) / YAO SONGBAI (Autor:in) / LI JINRU (Autor:in) / MEI XIAOJUN (Autor:in) / DONG ZHIQIANG (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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