Damage and restoration technology of historic buildings of brick and wood structures: a review

Maintenance and preservation techniques for wall surfaces Common issues in the maintenance and preservation of ancient brick wall surfaces include efflorescence, biological damage, and powdering, which are salt-hydration phenomena [65, 66] (Fig. 10b–e). These issues are all caused by severe seepage in certain areas of the brick wall [67], and surface maintenance and preservation, as well […]

Drying response of lime-mortar joints in granite masonry after an intense rainfall and after repointing

Moisture movement through mortar joints Figure 5a, c shows normalised moisture levels over time at surface and at depth for all the joints in all five walls. Granite is not present in Fig. 5a, c as very few differences were seen. Figure 5b, b’, d, d’ show the differences of moisture level from the measurement taken before rain […]

Microstructure and pore structure of polymer-cement composite joint sealants

Basic properties of pore structures Pore size distribution of the polymer-cement composite joint sealants is closely associated with their macro-mechanical properties21, and with such durability indicators as anti-permeability and corrosion resistance. Based on the MIP results, this section analyzes the basic pore structure properties of the joint sealants by using the differential curves for pore […]