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371results about How to "Reduce cohesion" patented technology

Uncured polyurethane waterproofing coating and preparation method thereof

The invention discloses an uncured polyurethane waterproofing coating and a preparation method thereof, belonging to the technical field of polyurethane waterproofing coatings. The uncured polyurethane waterproofing coating is prepared from the following raw materials in percentage by weight: 13-20% of prepolymer, 30-65% of asphalt, 1.0-1.5% of latent curing agent, 3-15% of compatilizer, 2-9% of thermoplastic elastomer and 0-3% of powder stuffing, wherein prepolymer is a substance synthesized by reaction between polyether and isocyanate. The uncured polyurethane waterproofing coating mainly aims to improve the material proportion and polymerization process of polyurethane, and the problem that a hot-melted asphalt material is needed to be heated by using a machine is solved; the uncured polyurethane waterproofing coating is convenient in construction and good in flowability; the viscosity of the constructed material can be automatically enhanced, so that the constructed material can become an elastic plastic body and a favorable waterproofing layer without internal stresses; in addition, the uncured polyurethane waterproofing coating can be well bonded with a coiled material and can be compounded to be waterproof so as to form a waterproofing layer capable of overcoming tension fracture caused by basement layer cracking and preventing puncturing; the uncured polyurethane waterproofing coating is simple and convenient in process, rapid in construction, free of maintenance, high in working efficiency and capable of becoming the development direction of building waterproofing in the further.
Owner:浙江鲁班建材科技股份有限公司

Fast consolidation method of blow-filled soft soil for land reclamation

The invention relates to a fast consolidation method of blow-filled soft soil for land reclamation, comprising the following process steps of: erecting a floating bridge; paving a plastic woven cloth; paving a main pipe and a branch pipe; inserting a plastic drainage plate; embedding a joint and a vacuum degree meter of a vacuum pump and a pore pressure meter monitoring device; paving a geotextile; paving a vacuum film; distributing the vacuum pump and trying to vacuumize; vacuumizing; monitoring construction; and carrying out vacuum water covering united pre-loading and unloading detection, wherein the step of erecting the floating bridge comprises: erecting the floating bridge on the blow-filled soft soil requiring the treatment and building a construction platform and a channel on mud. The invention has the advantages that construction members carry out operations of paving the plastic woven cloth, inserting the plastic drainage plate, laying pipes, paving the geotextile and the like on the floating bridge, thereby the technical problem that the follow-up treatment on the new blow-filled soft soil cannot be instantly carried out by using the traditional soft soil foundation treatment technology is solved, and 2-5 years for consolidating the new blow-filled soft soil naturally before retreatment are saved.
Owner:温州泰昌港湾工程有限公司

Neutron irradiation preventing low-hydration-heat barite concrete

The invention relates to the technical field of concrete, and particularly relates to neutron irradiation preventing low-hydration-heat barite concrete. The neutron irradiation preventing low-hydration-heat barite concrete comprises the following components in content: 163.8-168kg / m<3> of water, 200-280kg / m<3> of cement, 90-140kg / m<3> of slag powder, 9.5-10.5kg / m<3> of boron glass powder, 850-900kg / m<3>of iron ore sand, 340-360kg / m<3> of iron sand, 1558-1600kg / m<3> of barite, 300-330kg / m<3> of barite sand, 0.85-0.95kg / m<3> of polypropylene fiber and 4% to 7% of a polycarboxylate-type water reducing agent. The neutron irradiation preventing low-hydration-heat barite concrete disclosed by the invention is larger than 3600kg / m<3> in apparent density, larger than 110kg / m<3> in retained crystal water and good in neutron irradiation prevention effect; when being applied to a large-size concrete structure of which the minimum geometric dimension is larger than 1.2m, the neutron irradiation preventing low-hydration-heat barite concrete is low in hydration heat, the internal and external temperature difference is smaller than or equal to 20 DEG C, the adiabatic temperature rise is smaller than or equal to 55 DEG C, and the neutron irradiation preventing low-hydration-heat barite concrete is applicable to a large-size radiation-proof structure. The concrete can reach relatively high requirements in aspects such as retained crystal water, fluidity, cohesiveness and water retention property and has the advantages of guaranteeing the strength and the compactness and controlling the hydration heat.
Owner:GUANGDONG PROVINCIAL ARCHITECTURAL ENG MACHINERY CONSTR +1

Machine-spraying quick-demulsifying solidification film formation creep waterproof coating and preparation method thereof

The invention discloses a machine-spraying quick-demulsifying solidification film formation creep waterproof coating and a preparation method thereof, belonging to the technical field of waterproof coating. The waterproof coating is formed from the components A and B by atomization mixing in air and dehydration curing, wherein the component A comprises the following components in percentage by weight: 5-20% of thermoplastic elastomer polymer, 20-50% of asphalt, 30-50% of water, 1-5% of emulsifier, 5-20% of rubber latex and 0-20% of filler; the component B consists of the following components in percentage by weight: 30-40% of demulsifier and 60-70% of water. The waterproof coating overcomes the shortcomings of a common elastomer, such as quick aging in a high-stress state for a long time, stretching fatigue and the like, and always keeps good viscosity and re-bonding ability; the problem of internal stress of a waterproof layer is thoroughly solved, so that the waterproof layer has the characteristics of strong sustained bonding ability, high elongation and low-temperature flexibility; the material has good adhesive property, good heat resistance and good low-temperature flexibility, and the creep property in a shear state can exceed 0.1N / mm.
Owner:浙江鲁班建筑防水有限公司
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