title: ÐÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÐµ Ð±ÐµÑÐ¾Ð½Ñ. Ð¡Ð¿Ð¾ÑÐ¾Ð±Ñ Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: High-strength concrete. Methods of chemical modification
Creators: name: ÐÐ¸ÑÑÐ¶Ð°Ð½Ð¸Ð½, ÐÐ»ÐµÐºÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÐ¹ Ð±ÐµÑÐ¾Ð½
Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð´Ð¾Ð±Ð°Ð²ÐºÐ¸
Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ
Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¾ÑÑ
Ð¼Ð¸ÐºÑÐ¾ÐºÑÐµÐ¼Ð½ÐµÐ·ÐµÐ¼
ÑÑÐ¿ÐµÑÐ¿Ð»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¾ÑÑ
high-strength concrete
chemical admixtures
strength
modifiers
silica fume
superplasticizers

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÐµ Ð±ÐµÑÐ¾Ð½Ñ. Ð¡Ð¿Ð¾ÑÐ¾Ð±Ñ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸Â». Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÑÐ°Ð²Ð° Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÑ Ð±ÐµÑÐ¾Ð½Ð¾Ð² Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸ Ð´Ð¾Ð±Ð°Ð²ÐºÐ°Ð¼Ð¸ Ñ ÑÐµÐ»ÑÑ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð´Ð¾Ð±Ð°Ð²Ð¾Ðº Ð½Ð° Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð±ÐµÑÐ¾Ð½Ð¾Ð².
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1. ÐÐ½Ð°Ð»Ð¸Ð· ÑÑÑÐ´Ð¾Ð² Ð¸ ÑÑÐ°ÑÐµÐ¹ Ð¿Ð¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð´Ð¾Ð±Ð°Ð²Ð¾Ðº Ð² Ð±ÐµÑÐ¾Ð½Ð½ÑÐµ ÑÐ¼ÐµÑÐ¸.
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description: Topic of the final qualifying work: "High-strength concrete. Methods of chemical modification". This work is devoted to designing the composition of high-strength concrete with various additives in order to study the effect of additives on the strength characteristics of concrete.
Tasks to be solved in the research process:
1. Analysis of works and articles on the use of additives in concrete mixtures.
2. Study of the design technology of high-strength concrete compositions.
3. Determination of the strength of high-strength concrete with various modifying additives.
4. Development of recommendations for the design of high-strength concrete with modifying additives.
Compression testing of concrete cube samples were conducted in the laboratory of building materials Higher school of industrial, civil and road construction SPbPU of Peter the Great. Based on the results of the study, a comparative analysis of sample compositions and strength characteristics of concrete was performed, and a list of recommendations for the design of high-strength concrete compositions using plasticizing and mineral additives was compiled on their basis. The design of the composition was carried out according to the recommendations on the manufacturing technology of products and structures made of high-strength concrete [59], and tests were carried out in accordance with GOST 10180-2012 [58].