KR100307147B1 - The Water-permeable Cement Concrete Composition having Remelting-resistance - Google Patents

The Water-permeable Cement Concrete Composition having Remelting-resistance Download PDF

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KR100307147B1
KR100307147B1 KR1019990036000A KR19990036000A KR100307147B1 KR 100307147 B1 KR100307147 B1 KR 100307147B1 KR 1019990036000 A KR1019990036000 A KR 1019990036000A KR 19990036000 A KR19990036000 A KR 19990036000A KR 100307147 B1 KR100307147 B1 KR 100307147B1
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aggregate
water
concrete composition
sieve
permeable concrete
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KR20010019551A (en
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이용구
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민광식
주식회사 유로엔지니어링플러스
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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
    • 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
    • C04B28/04—Portland cements
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Road Paving Structures (AREA)

Abstract

포틀랜드 시멘트와 AE감수제와 물과 골재로 이루어진 투수성 콘크리트 조성물에 있어서, 250㎏/㎥를 초과하고 300㎏/㎥미만인 1종 보통 포틀랜드 시멘트 100중량부에 대해 A.E.고감수제 0.5 내지 1.0중량%와 물과 골재로 구성하되, 계절과 용도에 따라 A.E.고감수제를 선택적으로 사용하고 골재의 구성을 조절함으로써, 투수성 시멘트 콘크리트의 휨 및 압축강도와 투수성을 동시에 향상시키고, 동결 융해에 대한 저항을 증대시켜 내한성이 우수한 콘크리트 구축물을 제조하기 위한 조성물을 제공한다.In the water-permeable concrete composition consisting of Portland cement, AE water reducing agent, water and aggregate, 0.5 to 1.0% by weight of AE high water reducing agent and water based on 100 parts by weight of one ordinary Portland cement of more than 250 kg / m 3 and less than 300 kg / m 3 It is composed of aggregate and aggregate, but by using AE high water reducing agent selectively and adjusting the composition of aggregate according to season and use, it simultaneously improves the deflection, compressive strength and permeability of permeable cement concrete, and increases resistance to freeze-thawing. It provides a composition for producing a concrete structure with excellent cold resistance.

Description

동결융해 저항성을 지니는 투수 시멘트 콘크리트 조성물 {The Water-permeable Cement Concrete Composition having Remelting-resistance}The Water-permeable Cement Concrete Composition having Remelting-resistance

본 발명은 투수성 콘크리트 조성물에 관한 것이다.The present invention relates to a water-permeable concrete composition.

일반적으로 투수성을 지니는 시멘트 콘크리트에 대한 기술은 공지된 기술이지만, 일반적인 시멘트 콘크리트의 수명이 20년 이상인데 반하여 투수성 시멘트 콘크리트는 콘크리트 내부에 존재하는 공극이 계절의 변화에 따라 동결 융해가 반복됨으로 인하여 노화 현상이 촉진되어 10년 이내로 매우 짧으며, 적절한 투수성을 부여하기위하여 형성한 공극은 강도를 저하시키는 원인이 되기 때문에, 가벼운 충격에도 파손 또는 표면 변형을 일으키는 문제가 있었다.Generally, the technology of permeable cement concrete is a known technique. However, in general, the permeability of cement concrete is freeze-thawing due to the seasonal variation of the voids in the concrete. Due to the aging phenomenon is accelerated to very short within 10 years, because the voids formed to impart proper permeability cause a decrease in strength, there was a problem of causing damage or surface deformation even in light impact.

이에 따라 투수성과 강도가 적절한 수준으로 설정되고, 지속적으로 유지되는 연구가 활발하게 진행되었다.As a result, permeability and strength have been set to an appropriate level, and studies have been actively conducted.

예로써, 대한민국 공고 특허 제90-4390호에서는 물 116㎏/㎥, 시멘트 292㎏/㎥, 잔골재 87㎏/㎥, 굵은 골재 1690㎏/㎥, 안료 7.0㎏/㎥, AE감수제 0.58㎏/㎥으로 혼합한 투수성 콘크리트를 제공하였고, 동 제91-6894호에서는 시멘트 콘크리트 혼합물 1㎥당 300 내지 400㎏의 포틀랜드 시멘트, 시멘트 1중량부에 대해 0.005 내지 0.1 중량부의 바인더와 0.35 내지 0.45 중량부의 물 및 잔부를 이루는 골재로 이루어진 투수성 콘크리트를 제공하였으며, 대한민국 공개 특허 제97-31018호에서는 물 120 내지 130㎏/㎥, 시멘트 270내지 340㎏/㎥, 6 내지 10㎜ 크기의 골재 1530 내지 1920㎏/㎥, 안료 14 내지 20㎏/㎥에 지연제를 시멘트 사용량의 0.3% 이내로 혼합하여 투수계수가 50×10-2㎝/s 이상이고, 설계 기준 강도가 100 내지 300㎏/㎠로 되게 한 투수성 콘크리트를 제공하였다.For example, in Korean Patent Publication No. 90-4390, water 116 kg / m 3, cement 292 kg / m 3, fine aggregate 87 kg / m 3, coarse aggregate 1690 kg / m 3, pigment 7.0 kg / m 3, AE reducing agent 0.58 kg / m 3 A mixed water-permeable concrete was provided, and in No. 91-6894, 0.005 to 0.1 parts by weight of binder, 0.35 to 0.45 parts by weight of water, and 300 to 400 kg of Portland cement per 1 m 3 of cement concrete mixture, 1 part by weight of cement, Provided permeable concrete consisting of aggregates constituting the remainder, Republic of Korea Patent Publication No. 97-31018 No. 120 to 130 kg / ㎥, Cement 270 to 340 kg / ㎥, 6 to 10 mm aggregate size 1530 to 1920 kg / Permeability with a retardant mixed within 0.3% of the amount of cement used in m 3 and pigments 14 to 20 kg / m 3 to have a permeability coefficient of 50 × 10 −2 cm / s or more and a design reference strength of 100 to 300 kg / cm 2 Provided concrete.

그러나, 혹서기의 외기가 30℃를 초과하고 혹한기의 외기가 -20℃미만으로써 계절 변화에 따른 외기 온도차이만 50℃ 이상을 보이는 국내 도로 상황을 제대로 반영하지 못하여 동결 융해에 의한 내한성에 취약한 문제가 있었다.However, since the outside air temperature of the cold weather exceeds 30 ℃ and the outside air temperature of the cold weather is less than -20 ℃, it does not properly reflect the domestic road situation showing only 50 ℃ or more difference in the outside temperature according to the seasonal change, which is vulnerable to the cold resistance by freezing and melting there was.

이에 본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 투수성 시멘트 콘크리트의 강도와 투수성을 동시에 향상시키고, 내한성이 우수한 투수성 콘크리트 구축물을 제조할 수 있는 조성물을 제공하는 것을 목적으로 한다.Accordingly, the present invention is to solve the above problems, it is an object of the present invention to improve the strength and permeability of the water-permeable cement concrete at the same time, and to provide a composition capable of producing a water-permeable concrete structure excellent in cold resistance.

상기와 같은 목적을 달성하기 위한 본 발명은 포틀랜드 시멘트와 AE감수제와 물과 골재로 이루어진 투수성 콘크리트 조성물에 있어서, 250㎏/㎥를 초과하고 300㎏/㎥미만인 1종 보통 포틀랜드 시멘트 100중량부에 대해 A.E.고감수제 0.5 내지 1.0중량%와 물과 골재로 구성되어 있으며, 골재의 함량이 1550 내지 1700㎏/㎥인 것을 특징으로 한다.The present invention for achieving the above object is a water-permeable concrete composition consisting of Portland cement, AE water reducing agent, water and aggregate, 100 parts by weight of one ordinary portland cement of more than 250kg / ㎥ less than 300kg / ㎥ It is composed of 0.5 to 1.0% by weight of AE highly sensitive agent and water and aggregate, characterized in that the content of the aggregate is 1550 to 1700kg / ㎥.

본 발명에서 사용되는 포틀랜드 시멘트의 양은 250㎏/㎥를 초과하고 300㎏/㎥미만인 것이 적절한데, 250㎏/㎥를 이하인 경우에는 강도상의 문제가 발생하고, 300㎏/㎥이상인 경우에는 투수율이 저하되는 문제가 발생한다.The amount of Portland cement used in the present invention is more than 250kg / ㎥ and less than 300kg / ㎥, it is appropriate, when less than 250kg / ㎥ occurs a strength problem, if the 300kg / ㎥ or more lower the permeability Problem occurs.

포틀랜드 시멘트와 물과 골재로 이루어진 투수성 콘크리트로서는 계절 변화에 따른 동결 융해 문제를 해결할 수 없으며, 상기의 문제를 해결하기 위해서는 적절한 감수제의 선택과 첨가량의 조절이 필요하다.Permeable concrete composed of Portland cement, water and aggregates cannot solve the freeze-thawing problem due to seasonal changes, and to solve the above problems, it is necessary to select an appropriate water reducing agent and to adjust the amount of addition.

투수성 콘크리트에 있어서 감수제의 첨가는 특히 시멘트 경화에 필요한 수분을 감소시켜, 구축물이 한겨울에 함수(含水)에 의하여 동결 파손되는 문제를 해결하는 역할을 한다.In water-permeable concrete, the addition of water reducing agents, in particular, reduces the moisture required for cement hardening, thereby solving the problem of the structure being freeze-broken by water in the winter.

이러한 감수제 가운데, 투수성 콘크리트에서 가장 많이 사용되는 것이 A.E. 고감수제이지만 콘크리트의 품질을 저하시키는 영향을 주기때문에 극히 제한된 범위내에서 사용되어 왔다.Among these water repellents, A.E. Although it is a high water-repellent agent, it has been used in an extremely limited range because it affects the quality of concrete.

이에 본 발명자는 다양한 환경 조건에서 시험을 거듭한 결과, 콘크리트 구축물을 시공할 때, A.E. 고감수제를 계절별에 따라 선택적으로 사용하고, 포틀랜드 시멘트와 물과 골재의 비율을 제어한 콘크리트 조성물을 사용함으로써 국내 환경 및 기후 조건에 적합한 투수성 콘크리트 구축물을 제공하게되었다.The present inventors have repeatedly tested in various environmental conditions, when the concrete construction, A.E. The use of high water-resistance agents seasonally and the use of concrete compositions with controlled proportions of Portland cement and water and aggregates have provided permeable concrete structures suitable for domestic environmental and climatic conditions.

본 발명에 따르면, 봄과 가을에 시공되는 경우에는 표준형 A.E. 고감수제를 사용하고, 기온이 높은 여름에는 지연형 A.E. 고감수제를 사용하여, 급격한 응결을 방지하고 적산 온도가 부족한 겨울에는 촉진형 A.E. 고감수제를 사용하여 초기 강도를 확보하도록 한다.According to the invention, the standard type A.E. In the summer with high water resistance and high temperature, the delay type A.E. A high water-resistance agent is used to prevent rapid condensation and to promote A.E. Use a high water-resistance agent to ensure initial strength.

본 발명에서는 시공되는 계절에 따라 A.E. 고감수제를 선택적으로 사용함으로써 투수콘크리트를 생산하는데 있어서 필요한 단위 체적당 물의 양을 15% 감소 시키게 되어 강도가 증대하게 된다.In the present invention, A.E. By selectively using a high water-reducing agent, the amount of water per unit volume required to produce permeable concrete is reduced by 15%, increasing strength.

이때, A.E. 고감수제의 사용량은 0.5 내지 1.0중량%가 적절한데 0.5중량% 미만인 경우에는 감소되는 물의 양이 너무 적어 강도가 약해지는 문제가 있고 1.0중량부를 초과하는 경우에는 콘크리트 경화가 적절하게 이루어지지 않는 문제가 있다.At this time, A.E. If the amount of the high water reducing agent is 0.5 to 1.0% by weight is appropriate, but less than 0.5% by weight of the amount of water to be reduced is too small, there is a problem that the strength is weakened, if it exceeds 1.0 parts by weight concrete curing is not properly made have.

골재의 구성은 사용되는 용도에 따라 차이가 있는데, 차도 및 주차장 용으로 사용되는 경우에는 차량에 의한 피로가 누적되고, 하중을 많이 받기 때문에 직경이 13 내지 10㎜인 골재를 사용하되, 10㎜체를 통과하는 통과율은 80% 내외이고 잔율은 20% 내외이며, 5㎜체에서의 잔율은 94% 내외인 것을 사용한다.The composition of the aggregate is different depending on the purpose of use, but when used for the roadway and parking lot, because the fatigue accumulated by the vehicle and receives a lot of load, the aggregate of 13 to 10mm in diameter is used, but 10mm sieve The passing rate is about 80%, the residual rate is about 20%, and the residual ratio in the 5 mm sieve is about 94%.

한편 자전거 전용도로, 산책로 또는 인도와 같이 왕래는 빈번하지만 하중을 적게받는 곳에는 직경이 10 내지 5㎜인 골재를 사용하되, 5㎜체를 통과하는 통과율은 77% 내외이고 잔율은 23% 내외이며, 2.5㎜체에서의 잔율은 91% 내외인 것을 사용한다.On the other hand, aggregates with a diameter of 10 to 5 mm are used for frequent traffic such as bicycle paths, trails or sidewalks, but with less load. The passage rate through the 5 mm sieve is about 77% and the residual rate is about 23%. , The residual ratio in the 2.5 mm sieve is about 91%.

또한 공원길이나 테니스장과 같이 왕래가 빈번하지 않고 하중을 적게받는 곳에서는 직경이 5 내지 2.5㎜인 골재를 사용하되, 2.5㎜체를 통과하는 통과율은 75% 내외이고 잔율은 25% 내외이며, 1.2㎜체에서의 잔율은 89% 내외인 것을 사용한다.In addition, aggregates having a diameter of 5 to 2.5 mm are used in places where traffic is not frequent and loads are small, such as parks or tennis courts, but the passage rate through the 2.5 mm sieve is about 75% and the residual rate is about 25%. 1.2 The residual ratio in the mm body is about 89%.

이때 잔입자의 다소(多少)가 투수성 콘크리트의 강도 및 투수율의 변화에 영향을 주게된다.At this time, a small amount of residual particles affects the strength and permeability of the permeable concrete.

상기와 같은 조성을 지니는 혼합물은 포설하거나 형틀에 부어 경화시킴으로써 투수성 콘크리트 구축물로 제조된다.The mixture having such a composition is made into a permeable concrete construct by laying or curing in a mold.

이때, 혼합물 1㎥를 제조하는데 필요한 골재의 양은 1550 내지 1700㎏/㎥이 바람직하며, 1550㎏/㎥미만인 경우에는 투수율이 감소하는 문제가 발생하며, 1700㎏/㎥을 초과하는 경우에는 강도가 약해지는 문제가 발생한다.At this time, the amount of aggregate required to produce the mixture 1㎥ is preferably 1550 to 1700kg / ㎥, when less than 1550kg / ㎥ occurs a problem that the water permeability decreases, when the strength exceeds about 1700kg / ㎥ Rejection problem occurs.

한편, 본 발명에서 사용되는 골재는 흡수율이 3% 미만, 마모감량이 40%이하, 절대 건조 비중이 2.5 이상, 안정성이 12% 이하이며, 알카리 골재반응에서 무해한 것만을 사용하여야 한다.이하, 본 발명을 하기의 실시예에 의하여 보다 상세히 설명하기로 한다.<실시예>콘크리트용 쇄석골재를 용도별크기로 13㎜∼10㎜, 10㎜∼5㎜, 5㎜∼2.5㎜로 구분하고 물-시멘트비를 각각 30%, 32% 및 34%로 하여 기타재료의 배합비율을 표1과 같이 조정하고 투수성 콘크리트를 제조하여 압축강도, 투수성 및 동결융해저항시험을 한 다음 그 결과를 표2에 나타내었다.표 1 골재크기 배치번호 물-시멘트 비(%) 공극율(%) 단위량(㎏/㎦) 물 시멘트 골재 AE고감수제 13㎜∼10㎜ 1 30 24 75 250 1600 2.5 2 20 82.5 275 1650 2.75 3 17 90 300 1700 3.0 10㎜∼5㎜ 1 32 23 80 250 1600 2.5 2 20 88 275 1650 2.75 3 17 96 300 1700 3.0 5㎜∼2.5㎜ 1 34 23 85 250 1600 2.5 2 19 93.5 275 1650 2.75 3 16 102 300 1700 3.0 <압축강도>중량 2.5㎏의 다짐봉으로 30㎝의 높이에서 낙하시키는 방법으로 3층으로 각 30회씩 골재가 부스러지지 않도록 철판을 놓고 다져서 지름 10㎝, 높이 20㎝의 원통형 공시체를 제작하고, 24시간 방치후 시멘트풀로 캡핑한 다음 28일동안 20℃의 수중에서 양생시킨 후, 압축강도시험기를 사용하여 측정하였다.<투수성>중량 2.5㎏의 다짐봉으로 30㎝의 높이에서 낙하시키는 방법으로 1층으로 45회 철판을 놓고 다져서 지름 10㎝, 높이 10㎝의 원통형 공시체를 제작하고, 28일동안 기건 양생시킨 후, 흙의 정수위 투수시험방법에 따라 시험하였다.<동결 융해저항시험>압축강도용으로 제작한 공시체를 사용하여 공시체를 동결융해시험기에 넣고 영하 18℃로부터 4℃까지를 200사이클을 반복하여 실시하고 동결융해전의 압축강도에 대한 압축강도의 비로 계산하였다.표 2 골재크기 배치번호 압축강도(㎏/㎠) 투수계수(㎝/sec) 동결융해저항성(%) 13㎜∼10㎜ 1 149 0.38 93 2 184 0.28 95 3 219 0.14 98 10㎜∼5㎜ 1 151 0.34 94 2 186 0.24 96 3 221 0.12 97 5㎜∼2.5㎜ 1 155 0.28 92 2 190 0.21 95 3 225 0.11 97 On the other hand, the aggregate used in the present invention is less than 3%, the wear loss is less than 40%, the absolute dry specific gravity is 2.5 or more, stability is 12% or less, only the harmless in alkaline aggregate reaction should be used. The invention will be described in more detail with reference to the following examples. <Example> The concrete crushed aggregate is classified into 13 mm to 10 mm, 10 mm to 5 mm, and 5 mm to 2.5 mm in size according to the application. Are adjusted to 30%, 32% and 34%, respectively, and the mixing ratio of other materials is adjusted as shown in Table 1, and permeable concrete is prepared. The compressive strength, water permeability, and freeze melting resistance test are shown. Table 1 Aggregate size Batch number Water-cement ratio (%) Porosity (%) Unit weight (㎏ / ㎦) water cement aggregate AE High Water Resistant 13 mm to 10 mm One 30 24 75 250 1600 2.5 2 20 82.5 275 1650 2.75 3 17 90 300 1700 3.0 10 mm to 5 mm One 32 23 80 250 1600 2.5 2 20 88 275 1650 2.75 3 17 96 300 1700 3.0 5 mm to 2.5 mm One 34 23 85 250 1600 2.5 2 19 93.5 275 1650 2.75 3 16 102 300 1700 3.0 <Compressive strength> A cylindrical specimen having a diameter of 10 cm and a height of 20 cm was prepared by placing the iron plate on a three-layered slab so that the aggregates did not crumble in three layers in a method of falling from a height of 30 cm with a 2.5 cm weight compaction rod. 24 After standing for a long time, capped with cement paste and cured in water at 20 ° C. for 28 days, and measured using a compressive strength tester. <Permeability> By dropping at a height of 30 cm with a compaction rod weighing 2.5 kg. After placing 45 times of iron plate in one layer, a cylindrical specimen having a diameter of 10 cm and a height of 10 cm was prepared, and cured for 28 days, and then tested according to the water permeability test method of the soil. Using the specimen prepared for the test, the specimen was placed in a freeze-thawing tester and subjected to 200 cycles from -18 ° C to 4 ° C repeatedly and calculated as the ratio of the compressive strength to the compressive strength before freeze-thawing. Table 2 Aggregate size Batch number Compressive strength (㎏ / ㎠) Permeability coefficient (cm / sec) Freeze thawing resistance (%) 13 mm to 10 mm One 149 0.38 93 2 184 0.28 95 3 219 0.14 98 10 mm to 5 mm One 151 0.34 94 2 186 0.24 96 3 221 0.12 97 5 mm to 2.5 mm One 155 0.28 92 2 190 0.21 95 3 225 0.11 97

상기한 바와 같이 본 발명은, 상기와 같은 목적을 달성하기 위한 본 발명은 포틀랜드 시멘트와 AE감수제와 물과 골재로 이루어진 투수성 콘크리트 조성물에 있어서, 250㎏/㎥를 초과하고 300㎏/㎥미만인 1종 보통 포틀랜드 시멘트 100중량부에 대해 A.E.고감수제 0.5 내지 1.0중량%와 물과 골재로 구성하되, 계절과 용도에 따라 A.E.고감수제를 선택적으로 사용하고 골재의 구성을 조절함으로써, 투수성 시멘트 콘크리트의 휨 및 압축강도와 투수성을 동시에 향상시키고, 동결 융해에 대한 저항을 증대시켜 내한성이 우수한 투수성 콘크리트 구축물을 제조할 수 있는 조성물을 제공하는 바람직한 발명인 것이다.As described above, the present invention, the present invention for achieving the above object is a permeable concrete composition consisting of Portland cement, AE water reducing agent, water and aggregate, which is greater than 250kg / ㎥ and less than 300kg / ㎥ 1 It is composed of 0.5 ~ 1.0% by weight of AE high water reducing agent and water and aggregates based on 100 parts by weight of ordinary portland cement, but by selectively using AE high water reducing agent and adjusting the composition of aggregate according to season and application, It is a preferred invention to provide a composition that can improve the flexural and compressive strength and permeability at the same time, and to increase the resistance to freezing and thawing to produce a water-permeable concrete structure having excellent cold resistance.

Claims (5)

포틀랜드 시멘트와 AE감수제와 물과 골재로 이루어진 투수성 콘크리트 조성물에 있어서, 250㎏/㎥를 초과하고 300㎏/㎥미만인 1종 보통 포틀랜드 시멘트 100중량부에 대해 A.E. 고감수제 0.5 내지 1.0중량%와 물과 골재로 구성되어 있으며, 골재의 함량이 1550 내지 1700㎏/㎥인 것을 특징으로 하는 투수성 콘크리트 조성물.A water-permeable concrete composition comprising portland cement, an AE reducing agent, water, and aggregates, wherein A.E. is used for 100 parts by weight of one ordinary portland cement in excess of 250 kg / m 3 and less than 300 kg / m 3. High water-repellent 0.5 to 1.0% by weight and composed of water and aggregate, the content of aggregate is permeable concrete composition, characterized in that 1550 to 1700kg / ㎥. 제1항에 있어서, 골재가 3% 미만의 흡수율, 40%이하의 마모감량, 2.5 이상의 절대 건조 비중, 12% 이하의 안정성을 지니며, 알카리 골재반응에서 무해한 것을 특징으로 하는 투수성 콘크리트 조성물.The water-permeable concrete composition according to claim 1, wherein the aggregate has a water absorption of less than 3%, a wear loss of 40% or less, an absolute dry gravity ratio of 2.5 or more, and stability of 12% or less, and is harmless in alkali aggregate reaction. 제1항 또는 제2항에 있어서, 골재가 13 내지 10㎜의 평균 직경을 지니며, 10㎜체를 통과하는 통과율은 80% 내외이고 잔율은 20% 내외이며, 5㎜체에서의 잔율은 94% 내외인 것을 특징으로 하는 차도 및 주차장용 투수성 콘크리트 조성물.The aggregate according to claim 1 or 2, wherein the aggregate has an average diameter of 13 to 10 mm, the passage rate through the 10 mm sieve is about 80%, the residual rate is about 20%, and the residual in the 5 mm sieve is 94. Permeable concrete composition for the driveway and parking lot characterized in that the inside of the. 제1항 또는 제2항에 있어서, 골재가 10 내지 5㎜의 평균 직경을 지니며, 5㎜체를 통과하는 통과율은 77% 내외이고 잔율은 23% 내외이며, 2.5㎜체에서의 잔율은 91% 내외인 것을 특징으로 하는 자전거 전용도로, 산책로 및 인도용 투수성 콘크리트 조성물.The aggregate according to claim 1 or 2, wherein the aggregate has an average diameter of 10 to 5 mm, the passage rate through the 5 mm sieve is about 77%, the residual rate is about 23%, and the residual ratio in the 2.5 mm sieve is 91. Permeable concrete composition for bicycle paths, trails and sidewalks, characterized in that about%. 제1항 또는 제2항에 있어서, 골재가 5 내지 2.5㎜의 평균 직경을 지니며, 2.5㎜체를 통과하는 통과율은 75% 내외이고 잔율은 25% 내외이며, 1.2㎜체에서의 잔율은 89% 내외인 것을 특징으로 하는 공원길 및 테니스장용 투수성 콘크리트 조성물.The aggregate of claim 1 or 2, wherein the aggregate has an average diameter of 5 to 2.5 mm, the passage rate through the 2.5 mm sieve is about 75% and the residual rate is about 25%, and the residual in the 1.2 mm sieve is 89. Permeable concrete composition for park paths and tennis courts, characterized in that about%.
KR1019990036000A 1999-08-27 1999-08-27 The Water-permeable Cement Concrete Composition having Remelting-resistance KR100307147B1 (en)

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CN109704690A (en) * 2019-03-13 2019-05-03 四川农业大学 A kind of concrete and its construction method inhibiting frozen swell and melt settlement

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