KR20070115851A - A mixture for concrete mortar with insulation, thermal storage and intensity increase function - Google Patents

A mixture for concrete mortar with insulation, thermal storage and intensity increase function Download PDF

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KR20070115851A
KR20070115851A KR1020070117402A KR20070117402A KR20070115851A KR 20070115851 A KR20070115851 A KR 20070115851A KR 1020070117402 A KR1020070117402 A KR 1020070117402A KR 20070117402 A KR20070117402 A KR 20070117402A KR 20070115851 A KR20070115851 A KR 20070115851A
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South Korea
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concrete mortar
heat
strength
phase change
mixture
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KR1020070117402A
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Korean (ko)
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정지승
박종순
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신한건설산업(주)
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Publication of KR20070115851A publication Critical patent/KR20070115851A/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0071—Phase-change materials, e.g. latent heat storage materials used in concrete compositions
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0089—Agents for reducing heat of hydration
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/304—Air-entrainers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/44—Thickening, gelling or viscosity increasing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C04B2111/343—Crack resistant materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A mixture for concrete mortar is provided to increase strength of concrete mortar, have an energy reduction effect, and produce concrete mortar having thermal insulation and heat storage performances in a low cost. A mixture for concrete mortar having thermal insulation and thermal storage functions and strength-enhancing functions is obtained by adding 5wt% of an AE water-reducing agent and a very small amount of a cellulose-based thickener to 50wt% of water and 45wt% of phase change material capsules. The mixture is configured to prevent cracks and improve strength even without reducing flowability, absorb heat of hydration by the phase change material, and absorb a heat load from the outside and emit the heat slowly.

Description

단열 및 축열기능과 강도증강 기능을 갖는 콘크리트몰탈용 혼합소재{A mixture for concrete mortar with insulation, thermal storage and intensity increase function} A mixture for concrete mortar with insulation, thermal storage and intensity increase function

본 발명은 물체와 물체 사이에 열손실을 줄여주는 단열기능과 흡수된 열을 저장하는 축열기능, 그리고 몰탈 강도를 증강시키는 기능의 소재를 일정비율로 혼합하는 혼합소재에 관한 것으로, 보다 상세하게는 기존 건축 시공마감재인 벽면 및 바닥용 콘크리트 몰탈에 단열 및 축열 기능과 강도증가 기능을 갖는 혼합소재를 적용하여 시공시 단열 및 축열기능에 의한 에너지 절감효과와 더불어 강도증가에 의한 콘크리트 몰탈시공의 두께를 줄일수 있어 골재,시멘트등 원재료의 몰탈소요수량을 줄일 수 있어 시공단가를 줄이고 시장경쟁력을 향상시킨 발명에 관한 것이다.The present invention relates to a mixed material for mixing the material of the heat insulating function to reduce the heat loss between the object and the heat storage function to store the absorbed heat, and to increase the mortar strength in a certain ratio, more specifically, By applying mixed material with insulation and heat storage function and strength increase function to concrete mortar for wall and floor which are existing building finishing materials, it is possible to save energy by insulation and heat storage function and increase the thickness of concrete mortar construction by increasing strength. It can reduce the mortality requirements of raw materials such as aggregate, cement, etc. It is related to the invention to reduce the construction cost and improve the market competitiveness.

일반적으로 시멘트에 모래, 물, 자갈, 혼화제 등을 섞어 건축, 토목 공사의 원료로 이용하는 것을 콘크리트라고 한다. 여기서 자갈이 빠진 것을 시멘트 몰탈(이하 "콘크리트몰탈" 이라 칭함)이라 한다. In general, concrete is used as a raw material for construction and civil engineering by mixing sand, water, gravel and admixture with cement. Here, the missing gravel is referred to as cement mortar (hereinafter referred to as "concrete mortar").

이러한 콘크리트몰탈은 용도에 따라 다양하게 개발되어 왔으며 또 성능향상을 위하여 다양한 혼화재료를 부가하기도 한다. These concrete mortars have been developed in various ways according to the use, and also add various miscible materials for performance improvement.

상기와 같이 콘크리트몰탈에 혼화재를 사용함으로써, 다양한 형태의 기능성 콘크리트몰탈이 탄생되어지게 되는 것이다.By using the admixture in the concrete mortar as described above, functional concrete mortar of various forms will be born.

그 중의 하나가 이 사건출원의 혼합소재 개발의 동기부여가 된 단열 및 축열성 콘크리트몰탈을 예로 들을 수 있다.One example is the thermal insulation and heat storage concrete mortars that motivated the development of mixed materials in this case.

상기의 단열 및 축열 콘크리트몰탈에 축열 기능을 부여하는 방법으로는 현열 저장법과 잠열을 이용하여 저장하는 방법이 있다. As a method of imparting heat storage function to the thermal insulation and heat storage concrete mortar, there is a method of storing using sensible heat storage and latent heat.

상기의 현열 저장법은 콘크리트몰탈을 구성하는 무기물의 온도 상승에 따른 방법으로 구성물질의 열용량이나 밀도를 증가시켜 이용하는 저장법이고, 잠열을 이용하는 저장법은 무기수화물이나 파라핀, 지방산등의 고분자물질 중 어느 하나를 을 축열재(이하 "상변화물질"이라 함, PCM : Phase Change Material)로 혼합 이용하는 방법이다. The sensible heat storage method is a storage method used by increasing the heat capacity or density of the constituent material by the method of increasing the temperature of the inorganic material constituting the concrete mortar, the storage method using latent heat is any one of a polymer material such as inorganic hydrate, paraffin, fatty acid, etc. Is mixed with a heat storage material (hereinafter referred to as "phase change material", PCM: Phase Change Material).

상기 상변화물질을 이용한 열저장 기술의 원리는 물질이 기화, 용융, 승화 현상으로 인해 상변화 하는 동안에 일정한 온도를 유지하면서 열을 방출하거나 흡수하는 성질을 이용한 것이다. The principle of the heat storage technology using the phase change material is to utilize the property of emitting or absorbing heat while maintaining a constant temperature during the phase change due to the vaporization, melting, sublimation phenomenon.

이와 같은 성질을 이용하여 콘크리트몰탈에 적정량의 상변화물질(PCM)을 혼합하여 축열콘크리트몰탈의 제조가 가능해지는 것이다.By using such a property, it is possible to prepare a heat storage concrete mortar by mixing an appropriate amount of phase change material (PCM) in the concrete mortar.

상기와 같이 쓰여지는 다양한 상변화물질들은 운전 온도 범위에서 용융 온도가 존재해야 하며, 단위 부피당 용융열이 크고, 열회수 및 방출이 반복되어도 과냉각 현상이나 상분리 현상이 없고 균일한 용융 특성을 보여야 하며, 열전도도와 결정 성장속도가 커서 양호한 열응답 특성을 지니고 상변화시 열팽창으로 인한 부피 변화가 적으며 밀도가 커야된다는 물리적 열적 특성과 화학적 안정성, 독성, 인화성 휘발성 부식성, 침식성이 없어야 적용 가능하다. The various phase change materials used as above should have a melting temperature in the operating temperature range, have a large heat of fusion per unit volume, and show uniform melting characteristics without overcooling or phase separation even if the heat recovery and release are repeated. It is not applicable to physical thermal properties, chemical stability, toxicity, flammable volatile corrosiveness, and erosion, which have good thermal response characteristics due to its high growth rate and crystal growth rate, have small volume change due to thermal expansion and high density upon phase change.

상기에서 기술한 요건을 갖춘 상변화물질을 이용한 기존 단열 및 축열기능을 갖도록 하는 기존 콘크리트몰탈 혼합소재는 분말형태로 제조되는 것이어서 제조 공수가 복잡할 뿐만 아니라, 제조에 따른 시간과 노력이 많이 소요되어 혼합소재의 생산원가가 상승되어지는 단점을 가지고 있었을 뿐만 아니라, 콘크리트몰탈에 혼합사용시 용해되어지는 시간이 오래 걸림은 물론, 그로 인하여 균일한 혼합 사용을 기대할 수 없는 단점을 가지고 있다.Existing concrete mortar mixed material that has the existing insulation and heat storage function using the phase change material having the requirements described above is manufactured in the form of a powder, not only complicated manufacturing maneuver but also takes a lot of time and effort Not only has the disadvantage of increasing the production cost of the mixed material, but also takes a long time to dissolve when mixed in the concrete mortar, there is a disadvantage that can not be expected to use a uniform mixing.

또한 기존 콘크리트몰탈 혼합소재는 단열과 축열성능에 주안점을 두고 개발된 것이어서 강도가 현저하게 떨어질 수 밖에 없는 치명적인 결함을 내포하고 있는 실정이다.In addition, the existing concrete mortar mixed material was developed with a focus on the insulation and heat storage performance, and thus contains a fatal defect that can not only decrease the strength significantly.

본 발명은 상기한 종래 단열 및 축열 성능을 가지는 콘크리트몰탈의 문제점을 해소하기 위하여 개발한 것으로, 그 목적은 단열 및 축열 기능을 갖도록 콘크리트몰탈에 혼합 사용되는 혼합소재를 개선하여 단열 및 축열 성능을 유지하면서 그 강도를 증강시킬 수 있게 함과 더불어 혼합소재의 생산원가를 현저하게 낮춤으로써, 단열 및 축열성능을 가지는 콘크리트몰탈을 저렴한 가격으로 제공할 수 있는 단열 및 축열기능을 갖도록 하는 콘크리트몰탈의 강도증강용 혼합소재를 제공하는데 있다.The present invention was developed to solve the problems of the above-mentioned conventional concrete mortar having heat insulation and heat storage performance, the object is to improve the mixed material used in the concrete mortar to have a heat insulation and heat storage function to maintain heat insulation and heat storage performance Strengthen the strength of the concrete mortar to increase the strength and to significantly lower the production cost of the mixed material, to provide a thermal insulation and heat storage function that can provide a concrete mortar with heat insulation and heat storage performance at a low price To provide a mixed material for.

상기 목적을 달성하기 위한 본 발명은 50중량%의 함수율과 코팅처리하여서 캡슐화된 상변화물질(PCM : Phase Change Material) 45중량%에 AE감수제 5중량%의 비율로 이루어진 혼합소재는 유동성을 감소시키지 않으면서도 균열방지 및 강도를 향상시키면서 상변화물질에 의한 수화열 흡수는 물론 외부로부터의 열부하를 흡수 서서히 방출할 수 있도록 함을 특징으로 하는 단열 및 축열기능을 갖도록 하는 콘크리트몰탈의 강도증강용 혼합소재에 의하여 달성되어 진다In order to achieve the above object, the present invention provides a mixture of water content of 50% by weight and 45% by weight of the encapsulated phase change material (PCM: 5% by weight of AE-reducing agent). It is possible to absorb the heat of hydration by the phase change material and to release the heat load from the outside while improving the crack prevention and strength, and to release the heat load from the outside. Is achieved by

이상에서 상술한 바와 같은 본 발명은, 단열 및 축열 기능과 강도증강의 기능을 갖는 콘크리트몰탈용 혼합소재를 50중량%의 함수율과 코팅처리하여서 캡슐화된 상변화물질(PCM : Phase Change Material)인 45중량%에 AE감수제 5중량%의 액상 혼합소재를 개선함에 따라 단열 및 축열 성능을 유지하면서 그 강도를 증강시킬 수 있게 함과 더불어 혼합소재의 생산원가를 현저하게 낮춤으로써, 단열 및 축열성능과 강도증가의 성능을 갖는 콘크리트몰탈용 혼합소재를 저렴한 가격으로 제공할 수 있는 매우 유용한 발명인 것이다.As described above, the present invention is a 45 phase change material (PCM: Phase Change Material) encapsulated by coating a mixed material for concrete mortar having a function of thermal insulation and heat storage and strength enhancement with a water content of 50% by weight. By improving the liquid mixture of 5% by weight of AE reducing agent to 5% by weight, it is possible to increase the strength while maintaining the insulation and heat storage performance, and to significantly reduce the production cost of the mixed material, thereby providing the insulation and heat storage performance and strength. It is a very useful invention that can provide a mixed material for concrete mortar having an increased performance at a low price.

이하, 상기한 목적을 달성하기 위한 바람직한 실시예를 첨부된 도면에 의하여 상세하게 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings a preferred embodiment for achieving the above object is as follows.

본 발명에 의한 단열 및 축열기능을 갖도록 하는 콘크리트몰탈의 강도증강용 혼합소재는 50중량%의 함수율과 코팅처리하여서 캡슐화된 상변화물질(PCM : Phase Change Material)을 45중량%에 AE감수제 5중량%로 이루어진 것이다.The composite material for strength enhancement of concrete mortar, which has insulation and heat storage function according to the present invention, has a water content of 50% by weight and a coating treatment encapsulated by 45% by weight of AE reducing agent (PCM: Phase Change Material). It is made up of%.

상기 단열 및 축열기능과 강도증가용 기능을 갖는 콘크리트몰탈용 혼합소재는, 유동성을 감소시키지 않으면서도 균열방지 및 강도를 향상시키면서 상변화물질에 의한 수화열 흡수는 물론 외부로부터의 열 부하를 흡수 서서히 방출할 수 있도록 한다.The mixed material for concrete mortar having the insulation and heat storage function and the strength increasing function, absorbs the heat of hydration by the phase change material as well as absorbs the heat load from the outside while improving the crack prevention and strength without reducing fluidity. Do it.

상기 혼합소재 구성물중 상변화 물질인 PCM의 경우 기존 분말형태에 비하여 액상 상태이므로 혼합이 매우 용이하고 균일한 분산상을 얻을 수 있어 경제성이 높다. In the case of PCM, which is a phase change material in the mixed material constituent, the liquid phase is higher than that of the conventional powder, so that the mixing is very easy and a uniform dispersed phase can be obtained.

특히 건조되어 캡슐화된 상변화물질(PCM)의 경우 비중이 낮아 콘트리트나 몰탈에 혼합시 충분한 시간을 교반해 주어도 응결된 분말을 용해하기가 어려우며 상분리 현상으로 균일한 혼합물을 얻기 어려우나, 수용액 상으로 조성할 경우 균일한 분산상을 얻을 수 있다.Particularly, the dried and encapsulated phase change material (PCM) has a low specific gravity, so that it is difficult to dissolve the condensed powder even when stirred for sufficient time when mixed with concrete or mortar, and it is difficult to obtain a homogeneous mixture due to phase separation. If so, a uniform dispersed phase can be obtained.

본 발명의 혼합소재를 이용한 콘크리트몰탈 강도시험 Concrete mortar strength test using the mixed material of the present invention

구분 division 몰탈 Mortar 물water PCM슬러리 (함수율)PCM Slurry (water content) 감수제 Water reducing agent 첨가제 additive 압축강도(kgf/㎠)Compressive strength (kgf / ㎠) 비 고 Remarks 3일3 days 7일7 days 28일28 days 비교예Comparative example 750750 150150 -- -- -- 4.74.7 39.239.2 60.260.2 실시예1Example 1 750750 -- 150(90%)150 (90%) -- -- 3.43.4 38.538.5 65.465.4 백화현상Whitening phenomenon 실시예2Example 2 750750 -- 125(88%)125 (88%) 44 -- 3.53.5 53.153.1 77.977.9 백화현상Whitening phenomenon 실시예3Example 3 750750 -- 125(88%)125 (88%) 44 22 3.93.9 55.255.2 79.379.3 실시예4Example 4 750750 -- 150(80%)150 (80%) 44 22 3.83.8 54.554.5 78.578.5 실시예5Example 5 750750 -- 200(70%)200 (70%) 44 22 3.83.8 53.753.7 77.877.8

위 조성비로 몰탈 조성물을 만든 뒤 가로 세로 높이 5㎝의 큐브 몰드를 만들어 강도 시험을 실시하였다. After the mortar composition was made with the above composition ratio, a cube mold having a height and width of 5 cm was made and subjected to a strength test.

실시예 1에서 보는 바와 같이 상변화물질(PCM) 첨가시 백화 현상이 발생하였으며 압축강도도 감소하는 경향을 나타내었다. As shown in Example 1, the addition of a phase change material (PCM) showed a whitening phenomenon and a decrease in compressive strength.

유동성을 개량하고 강도의 증가를 꾀할 목적으로 AE감수제를 부가하여 유동성 개선 및 강도 증가를 도모 할 수 있었으나, 경화 시간이 지연되며 초기압축강도도 일반 몰탈에 비하여 떨어졌으며 백화 현상이 계속 되었다. In order to improve the fluidity and increase the strength, the addition of AE reducing agent could improve the fluidity and increase the strength. However, the curing time was delayed, the initial compressive strength was lower than that of general mortar, and the whitening phenomenon continued.

미량의 셀룰로스계 증점제를 부가하여 백화현상을 막고 강도의 증가도 달성할 수 있었다. A small amount of cellulose thickener was added to prevent bleaching and to achieve increased strength.

또 상변화물질(PCM)의 양을 늘려도 초기 강도가 약간 저하될 뿐 압축 강도의 저하도 초래하지 않았다. Increasing the amount of phase change material (PCM) also slightly reduced the initial strength did not cause a decrease in compressive strength.

이상의 방법으로 만들어진 큐브 몰드를 가지고 열 성능을 평가한 결과는 아래와 같았다. The thermal performance was evaluated using the cube mold made by the above method.

몰탈종류Mortar Type 비열(kcal/kg℃)Specific heat (kcal / kg ℃) 열용량(kcal/㎥℃)Heat capacity (kcal / ㎥ ℃) 비 중importance 축열재함량Heat storage 비교예Comparative example 0.210.21 421421 2.012.01 -- 실시예1Example 1 0.280.28 571571 2.042.04 2%2% 실시예4Example 4 0.350.35 728728 2.082.08 4%4% 실시예5Example 5 0.490.49 10581058 2.162.16 8%8%

위 평가는 축열 몰탈의 비열은 물열량계로 25℃에서 35℃ 사이의 비열을 측정한 것으로 축열재의 함량이 높을수록 비열도 높았으며 열용량도 증가하였다. In the above evaluation, the specific heat of heat storage mortar was measured from 25 ℃ to 35 ℃ using water calorimeter. The higher the heat storage material, the higher the specific heat and the heat capacity increased.

Claims (1)

50중량%의 함수율과 코팅처리하여서 캡슐화된 상변화물질(PCM : Phase Change Material)을 45중량%에 AE감수제와 미량의 셀룰로스계 증점제 5중량%로 이루어진 혼합소재로서, 유동성을 감소시키지 않으면서도 균열방지 및 강도를 향상시키면서 상변화물질에 의한 수화열 흡수는 물론 외부로부터의 열 부하를 흡수 서서히 방출할 수 있도록 함을 특징으로 하는 단열 및 축열기능과 강도증강 기능을 갖도록 하는 콘크리트몰탈용 혼합소재.50% by weight of water content and coating is encapsulated with 45% by weight of phase change material (PCM) encapsulated with AE water reducing agent and 5% by weight of cellulose thickener. A mixed material for concrete mortar having heat insulation and heat storage function and strength enhancing function, characterized by absorbing hydration heat by phase change material and absorbing heat load from outside while improving prevention and strength.
KR1020070117402A 2007-11-16 2007-11-16 A mixture for concrete mortar with insulation, thermal storage and intensity increase function KR20070115851A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102464478A (en) * 2010-11-18 2012-05-23 特里波德株式会社 Ultralow-heat binder composition with high-temperature type latent-heat compound and method for lowering hydration heat of concrete by using same
KR101219490B1 (en) * 2011-01-21 2013-01-11 한성국 Anaerobic composition system using the heat hydrolysis and phase change materials of paraffin
KR20150072135A (en) * 2013-12-19 2015-06-29 주식회사 삼표산업 Mass concrete with admixture that is low viscosity and hydration crack reducing type
WO2018088748A1 (en) * 2016-11-11 2018-05-17 롯데정밀화학 주식회사 Composition for construction material, and construction material including same
CN109020397A (en) * 2018-09-10 2018-12-18 成都宏基建材股份有限公司 A kind of phase-change energy-storage mortar and preparation method thereof
CN113582603A (en) * 2021-05-24 2021-11-02 江益平 Waterproof heat-insulating material for roof leakage repair

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102464478A (en) * 2010-11-18 2012-05-23 特里波德株式会社 Ultralow-heat binder composition with high-temperature type latent-heat compound and method for lowering hydration heat of concrete by using same
CN102464478B (en) * 2010-11-18 2014-02-26 特里波德株式会社 Ultralow-heat binder composition with high-temperature type latent-heat compound and method for lowering hydration heat of concrete by using same
KR101219490B1 (en) * 2011-01-21 2013-01-11 한성국 Anaerobic composition system using the heat hydrolysis and phase change materials of paraffin
KR20150072135A (en) * 2013-12-19 2015-06-29 주식회사 삼표산업 Mass concrete with admixture that is low viscosity and hydration crack reducing type
WO2018088748A1 (en) * 2016-11-11 2018-05-17 롯데정밀화학 주식회사 Composition for construction material, and construction material including same
CN109020397A (en) * 2018-09-10 2018-12-18 成都宏基建材股份有限公司 A kind of phase-change energy-storage mortar and preparation method thereof
CN113582603A (en) * 2021-05-24 2021-11-02 江益平 Waterproof heat-insulating material for roof leakage repair

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