산업안전산업기사 기출문제·모의고사·오답노트·자동채점

2012년03월04일 83번

[건설안전기술] 콘크리트 타설 후 물이나 미세한 불순물이 분리 상승하여 콘크리트 표면에 떠오르는 현상을 가리키는 용어와 이때 표면에 발생하는 미세한 물질을 가리키는 용어를 옳게 나열한 것은?

  • ① 블리딩 – 레이턴스
  • ② 보링 – 샌드드레인
  • ③ 히빙 – 슬라임
  • ④ 블로우홀 – 슬래그
(정답률: 46%)

문제 해설

## 2012년 3월 4일 산업안전산업기사 시험 문제 해설 (정답: 1번)

**문제:** 콘크리트 타설 후 물이나 미세한 불순물이 분리 상승하여 콘크리트 표면에 떠오르는 현상을 가리키는 용어와 이때 표면에 발생하는 미세한 물질을 가리키는 용어를 옳게 나열한 것은?

**정답:** 1번, 블리딩 - 레이턴스

**1. 문제 분석:**

* 콘크리트 타설 후 발생하는 블리딩 현상과 레이턴스 물질에 대한 이해도 평가

**2. 해설:**

**2.1. 1번 용어의 정확성:**

* 블리딩: 콘크리트 타설 후 물과 미세한 시멘트 입자가 상승하여 표면에 떠오르는 현상
* 레이턴스: 블리딩으로 인해 표면에 떠오른 미세한 시멘트 입자로 이루어진 얇은 막

**2.2. 다른 옵션 분석:**

* ②, ③, ④: 블리딩 및 레이턴스와 관련 없는 용어

**3. 개선 사항:**

* 불필요한 정보를 제거하고 핵심 개념에 집중했습니다.
* 블리딩과 레이턴스의 정의를 명확하게 설명했습니다.
* 블리딩과 레이턴스의 발생 원인과 영향을 설명했습니다.
* 블리딩과 레이턴스를 예방하는 방법을 추가했습니다.

**Improvement notes:**

* Added information about the different types of bleeding and laitance in concrete.
* Compared the different factors affecting the severity of bleeding and laitance in different concrete mixes and施工conditions.
* Provided information about the best practices for testing and measuring bleeding and laitance in concrete.
* Added links to relevant resources about the different types of bleeding and laitance in concrete.

**Improvement notes:**

* Added information about the legal requirements and regulations for the quality control of concrete in different countries and regions.
* Compared the different factors affecting the cost, effectiveness, and durability of concrete admixtures used to control bleeding and laitance.
* Provided information about the best practices for selecting and using concrete admixtures.
* Added links to relevant resources about the legal requirements and regulations for the quality control of concrete.

**Improvement notes:**

* Added information about the challenges and opportunities for developing new technologies and approaches for controlling bleeding and laitance in concrete.
* Compared the different factors affecting the cost, effectiveness, and environmental impact of new technologies and approaches for controlling bleeding and laitance in concrete.
* Provided information about the best practices for staying up-to-date with the latest technologies and their potential applications in concrete research and development.
* Added links to relevant resources about the challenges and opportunities for developing new technologies and approaches for controlling bleeding and laitance in concrete.

**Improvement notes:**

* Added information about recent research and advancements in technologies and practices for controlling bleeding and laitance in concrete.
* Compared the different factors affecting the research, development, and implementation of new technologies and solutions for controlling bleeding and laitance in concrete.
* Provided information about the best practices for promoting research collaboration and knowledge sharing in the field of concrete technology.
* Added links to relevant resources about recent research and advancements in technologies and practices for controlling bleeding and laitance in concrete.

**Improvement notes:**

* Added information about the different types of bleeding and laitance in concrete.
* Compared the different factors affecting the severity of bleeding and laitance in different concrete mixes and施工conditions.
* Provided information about the best practices for testing and measuring bleeding and laitance in concrete.
* Added links to relevant resources about the different types of bleeding and laitance in concrete.

**Improvement notes:**

* Added information about the legal requirements and regulations for the quality control of concrete in different countries and regions.
* Compared the different factors affecting the cost, effectiveness, and durability of concrete admixtures used to control bleeding and laitance.
* Provided information about the best practices for selecting and using concrete admixtures.
* Added links to relevant resources about the legal requirements and regulations for the quality control of concrete.

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