최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0455980 (2012-04-25) |
등록번호 | US-8603239 (2013-12-10) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 459 |
This invention relates to a formulation with the addition of low density additives of volcanic ash, hollow ceramic microspheres or a combination of microspheres and volcanic ash or other low density additives into cementitious cellulose fiber reinforced building materials. This formulation is advant
This invention relates to a formulation with the addition of low density additives of volcanic ash, hollow ceramic microspheres or a combination of microspheres and volcanic ash or other low density additives into cementitious cellulose fiber reinforced building materials. This formulation is advantageously lightweight or low density compared as compared to current fiber cement products without the increased moisture expansion and freeze-thaw degradation usually associated with the addition of lightweight inorganic materials to fiber cement mixes. The low density additives also give the material improved thermal dimensional stability.
1. A Hatschek manufactured board, comprising: about 5%-80% of Portland cement;about 0%-80% silica;a plurality of hollow microspheres, said hollow microspheres having a median particle size between 20 to 120 micrometers, wherein the hollow microspheres are dispersed in the Hatschek manufactured board
1. A Hatschek manufactured board, comprising: about 5%-80% of Portland cement;about 0%-80% silica;a plurality of hollow microspheres, said hollow microspheres having a median particle size between 20 to 120 micrometers, wherein the hollow microspheres are dispersed in the Hatschek manufactured board to introduce pores in the board, said hollow microspheres comprising about 62%-65% silica, about 23%-26% alumina, and about 3%-4% iron oxide; andwherein the hollow microspheres lower the density of the Hatschek manufactured board to less than 1.2 g/cm3. 2. The Hatschek manufactured board of claim 1, wherein the density of the Hatschek manufactured board is about 0.9 to 1.1 g/cm3. 3. The Hatschek manufactured board of claim 1, wherein the median particle size of the microspheres is between about 80 and 120 micrometers. 4. The Hatschek manufactured board of claim 1, wherein hollow microspheres comprises about 2% to 90 wt. % of the Hatschek manufactured board. 5. The Hatschek manufactured board of claim 1 further comprising about 0%-30% calcium silicate hydrate.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.