It is our recommendation that we carry 30% of insurable value on all fire-resistive AAA construction, that we carry 50% of value on ordinary construction other than sprinklered, and that we carry 90% on the sprinklered construction, the 90% on the sprinklered buildings being required by insurance regulations.    From Wordnik.com.  [Board of Visitors minutes] Reference

Investigations are being made into the effects of fire and the rate of conductivity of heat on concrete and reinforced concrete, brick, tile, building stone, etc., as a guide to the use of the most suitable materials for fire-proof building construction and the proper dimensioning of fire-resistive coverings.    From Wordnik.com.  [Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171] Reference

Investigations are being made in the field, of building stones locally available, and physical and chemical tests of these building stones to determine their bearing or crushing strength; the most suitable mortars for use with them; their resistance to weathering; their fire-resistive and fire-proof qualities, etc., regarding which practically no adequate information is available as a guide to Government engineering and building design.    From Wordnik.com.  [Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171] Reference

The partitions shall be constructed of brick or other fire-resistive material approved by the City Manager or other designated official, and all mortar used in the construction shall be.    From Wordnik.com.  [The code of the city of Charlottesville, Virginia] Reference

Answering this question has been surprisingly difficult, but it is important information for builders selecting high-performance fire-resistive materials and for scientists conducting computer simulations that investigate fires.    From Wordnik.com.  [EurekAlert! - Breaking News] Reference

3,800; and 550 tests to determine fire-resistive qualities of various building materials, have been made on 30 special panels, and on miscellaneous pieces.    From Wordnik.com.  [Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171] Reference