A kind of ultra-high performance concrete waterproof composite liquid and preparation method thereof

A technology of ultra-high-performance composite fluid, which is applied in the preparation of the concrete waterproof composite fluid, and in the field of ultra-high-performance concrete waterproof composite fluid, can solve problems such as inconvenient transportation, remote geographical location, and difficult design ideas, so as to improve water retention and performance. Segregation resistance, reduced erosion damage, and reduced slump loss

Active Publication Date: 2021-01-01
山东好运新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in most cases, the geographical location of marine concrete projects is remote, and transportation is inconvenient. It is difficult to obtain high-quality active mineral admixtures during actual construction, and even in remote areas, there is a lack of efficient water reducers.
Furthermore, the multi-component concrete mix design concept including two or more active mineral admixtures and several admixtures is difficult to implement in actual engineering, and the complexity and diversity of raw materials increase the difficulty of on-site mixing. Or practical difficulties in raw material storage, weighing and mixing, and quality control during centralized mixing
Therefore, the diversity of concrete raw materials and the combination of multiple components in the proportion have brought great technical difficulties to the raw material procurement, quality control, actual preparation and construction of high-performance marine concrete.

Method used

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  • A kind of ultra-high performance concrete waterproof composite liquid and preparation method thereof
  • A kind of ultra-high performance concrete waterproof composite liquid and preparation method thereof
  • A kind of ultra-high performance concrete waterproof composite liquid and preparation method thereof

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preparation example Construction

[0031] The present invention further provides a preparation method of the ultra-high performance concrete waterproof composite liquid, comprising the following steps:

[0032] (1) dissolving the soluble aluminum salt in water to obtain an intermediate product;

[0033] (2) adding a silane coupling agent to the intermediate product, heating, then adding an antioxidant and a stabilizer, and stirring at a constant temperature to obtain a concrete waterproof composite liquid.

[0034] In one embodiment of the present invention, in step (2), the heating temperature is 60-80° C., and the heating time is 20-30 minutes.

[0035] In one embodiment of the present invention, in step (2), the constant temperature stirring time is 60-120 min.

[0036] In a specific embodiment of the present invention, dissolve soluble aluminum salt in water, then add silane coupling agent, stir and heat up to 60-80°C, continue stirring for 20-30min, then add antioxidant and stabilizer, stir at constant te...

Embodiment 1

[0050] Dissolve soluble aluminum salt in water, then add silane coupling agent, stir and heat up to 70°C, continue stirring for 20 minutes, add antioxidant and stabilizer, and stir at constant temperature for 60 minutes to obtain concrete waterproof composite liquid. The composition and parts by weight of each material are shown in Table 1.

[0051] Table 1

[0052]

[0053]

[0054] The waterproof compound liquid is used in concrete, and the composition of the concrete is: relative to 1000 kg of stones, the amount of Portland cement is 600 kg, the amount of sand is 400 kg, the amount of water is 200 kg, and the amount of waterproof compound liquid is 10 kg , the consumption of phenolic fiber is 20kg.

[0055] The waterproof composite liquid 1-1 to the waterproof composite liquid 1-6 are used in concrete to obtain concrete 1-1 to concrete 1-6. The mixing method is as follows: mix the above-mentioned stones, portland cement, sand, water, and waterproof compound liquid a...

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Abstract

The invention relates to ultrahigh-performance concrete waterproof composite liquid being prepared from, by weight, 10-30 parts of soluble aluminum salt, 20-50 parts of a silane coupling agent, 0.5-5parts of an antioxidant, 0.5-5 parts of a stabilizer, and 100-200 parts of water. The concrete waterproof composite liquid has anti-seepage and anti-seawater-corrosion effect; as a concrete additive,the composite liquid can greatly improve the water-retaining property and anti-separation effect of concrete, reduces erosive damage on a protective layer surface of steel bars due to sea wave and seasand, and reduces and fines capillaries on the surface of concrete, thereby reducing capillary inhalation of the concrete to salts, alkalis and the like and reducing slump loss of concrete.

Description

technical field [0001] The invention relates to the field of concrete admixtures, in particular to an ultra-high-performance concrete waterproof compound liquid and a preparation method of the concrete waterproof compound liquid. Background technique [0002] Marine concrete refers to concrete that serves in seashore, seawater or environments affected by sea breeze and is disturbed by seawater or sea breeze. Due to long-term exposure to Cl - Corrosion and corrosion of steel bars in concrete are very common, and most of the built seaports and wharves cannot meet the design life requirements. The losses caused by the damage of concrete structures in China amount to billions of RMB every year. [0003] Both research and practice have shown that it can greatly improve the permeability resistance of concrete, reduce shrinkage cracking, reduce harmful ion components in the liquid phase inside concrete, and prevent Cl - The migration in the concrete pore phase is the technical k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B103/65C04B103/61
CPCC04B40/0039C04B2103/61C04B2103/65C04B22/148C04B24/42C04B2103/608C04B24/06C04B22/002
Inventor 高传位叶春海梁玉娟
Owner 山东好运新材料有限公司
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