Recycling of sand sludge as a resource for lightweight aggregates

Результат исследований: Материалы для журналаСтатья

17 Цитирования (Scopus)

Аннотация

This paper reports the results of investigations on manufacturing lightweight aggregate from sand sludge. Sand sludge is a waste product from crushing and screening plants for sand and gravel production. Preliminary studies demonstrate the feasibility of recycling sand sludge into lightweight aggregates. The properties of lightweight aggregates from sand sludge depend on both, the preliminary firing temperature of the frit and the foaming temperature of the green granules. Increasing the firing temperature of the frit from 800 to 900 C, the compressive strength, and the bulk and relative density of the granulated foam material decrease on the average by a factor of two, the water absorption decreases by 1%. The lightweight aggregates, derived from sand sludge at a temperature of 950 C, have a bulk density of 330 kg/m3, a compressive strength of 0.18 MPa and a water absorption of 0.1%.

Язык оригиналаАнглийский
Страницы (с-по)361-365
Число страниц5
ЖурналConstruction and Building Materials
Том52
DOI
СостояниеОпубликовано - 15 фев 2014

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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