TIDMSRES
RNS Number : 8150I
Sunrise Resources Plc
17 August 2021
17 August 2021
Sunrise Resources plc ("Sunrise" or "the Company")
Update: CS Pozzolan- Perlite Project
Sunrise Resources plc is pleased to announce positive test
results from recent commercial concrete pours using natural
pozzolan from the Company's CS Pozzolan-Perlite Deposit in Nevada,
USA, and to provide a general update on perlite customer
trials.
Highlights:
Natural Pozzolan
-- Two commercial concrete pours carried out by large Cement
& Ready- Mix Company ("CRMC") as due diligence towards
commercial agreement.
-- Positive results reported:
-- Preliminary results show early strength gain in excess of target strengths.
-- Seven-day concrete strengths exceed the 24-day target strengths after just 7 days curing.
Perlite
-- All customer trials for expansion of Horticultural Grade
Perlite now completed for 100-ton bulk sample.
-- All trial results now received.
-- Most recent customer trial considered very successful.
Commenting today, Executive Chairman Patrick Cheetham said : "We
are delighted to be announcing these exciting results which come
after a number of frustrating delays. The preliminary results from
the concrete pours using CS natural pozzolan are first-rate and, we
anticipate, will provide the basis for a more structured
arrangement with the CRMC carrying out this work."
"Interest in using the CS natural pozzolan in concrete continues
to grow and a number of additional companies have requested samples
in recent weeks, no doubt driven by the bleak long-term outlook for
coal fly ash supplies in the USA."
"Looking to the future, we believe that the US$1.2 trillion
infrastructure spending stimulus recently passed by the US Senate
and embraced by President Joe Biden, together with Biden's climate
plan will give further impetus to pozzolan demand and so we are
looking at possibilities to grow our business by acquiring
additional pozzolan deposits favourably located for other regional
centres of concrete demand in the western United States."
"Whilst development of the perlite for uses other than for
natural pozzolan is the smaller of the two business opportunities
at the CS Project, we are pleased to have received great feedback
from the most recent customer trials of our horticultural grade raw
perlite and look forward to advancing this and other production
options in tandem with the production of natural pozzolan."
Further information:
Sunrise Resources plc Tel: +44 (0)1625 838 884
Patrick Cheetham, Executive
Chairman
Tel: +44 (0)207 628 3396
Beaumont Cornish Limited
Nominated Adviser
James Biddle/Roland Cornish
Tel: +44 (0)207 469 0930
Peterhouse Capital Limited
Broker
Lucy Williams/Duncan Vasey
Market Abuse Regulation (MAR) Disclosure
The information contained within this announcement is deemed by
the Company to constitute inside information as stipulated under
the Market Abuse Regulations (EU) No. 596/2014 which forms part of
UK domestic law by virtue of the European Union (Withdrawal) Act
2018 ("MAR"). Upon the publication of this announcement via
Regulatory Information Service ("RIS"), this inside information is
now considered to be in the public domain.
Shares in the Company trade on AIM. EPIC: "SRES". Website:
www.sunriseresourcesplc.com
Detailed Information
The Company's CS Project is located near Tonopah in Esmeralda
County, Nevada and contains large deposits of mine-ready natural
pozzolan, along with deposits of perlite.
In December 2020, a 500-ton bulk sample of pozzolan was
delivered to a large CRMC(1) for commercial scale test grinding and
trials in some commercial concrete pours.
This work programme has experienced a number of delays, but in
May 2021 the Company announced that a test grind had been
successfully completed. The Company has now received preliminary
results from two commercial concrete pours made using the ground
pozzolan in partial substitution for Portland cement.
Concrete mixes are tailored to achieve target strengths
appropriate to the demands placed on the structures being
manufactured and a target strength is set at a specified number of
days after pouring.
In the case of the two concrete pours now being reported the
specified (target) strength was 3,000 psi at 28 days. In both cases
the concrete exceeded this target strength after just 7 days
curing.
After 7 days curing, the concrete made using CS natural pozzolan
achieved 105% and 113% of the target strengths respectively in the
two tests. This is an excellent result as the often specified
seven-day target commonly corresponds to approximately 70 percent
of the target compressive strengths.
Perlite Customer Trials
In the Company's announcement of 23 February 2021, the Company
advised that results were still awaited from certain customer
trials of the horticultural grade raw perlite ore samples produced
from its 100-ton bulk sample and that due to the high market demand
and fully utilised furnace capacity another potential customer had
not yet started its trial. The Company also advised that it had a
200-ton sample of perlite on hand ready for further processing to
provide additional graded ore samples when necessary.
All planned trials on the raw perlite produced from the 100-ton
sample have now been completed and results received. The Company
had previously advised that results then available were
inconclusive. However, in the last expansion trial to be completed,
the potential customer advised that they were able to produce
expanded horticultural perlite at very low target densities with
good production rates and a good-looking product. They also advise
that, assuming the previously reported sizing issues were resolved
as expected, the CS raw perlite would be a premium product, very
good for the US market and that they would be happy to start
receiving a regular supply.
The Company has been waiting on the results of all trials before
committing to process the 200-ton bulk sample and so this work can
now be scheduled.
Notes:
1. The CRMC is an internationally recognised Company and has a
substantial ready-mix concrete business that is a captive customer
for its cement products, and which could also use CS natural
pozzolan as a replacement for the large volumes of fly ash it has
traditionally used in its concrete business.
2. "Curing" is a chemical process that takes place within
concrete whereby water and cement react chemically to produce
calcium-silica-hydrate (C-S-H), the important compound that binds
the concrete sand and aggregate fillers together. Curing plays an
important role on strength development and durability of concrete
and takes place immediately after concrete placing and finishing
and continues for many months and even years. In
Portland-cement-based concretes, C-S-H forms quickly but an
unwanted by-product, Calcium Hydroxide (CH), also forms at the
expense of C-S-H. Formation of CH can weaken the concrete and
compromise density and allows ingress of water contaminated with
sulphates and chlorides that can attack the concrete and any
reinforcing steel. When pozzolan is used in concrete the pozzolan
reacts with and converts deleterious CH into additional C-S-H.
increasing density and strengthening the concrete further.
3. The news release may contain certain statements and
expressions of belief, expectation or opinion which are forward
looking statements, and which relate, inter alia, to the Company's
proposed strategy, plans and objectives or to the expectations or
intentions of the Company's directors. Such forward-looking
statements involve known and unknown risks, uncertainties, and
other important factors beyond the control of the Company that
could cause the actual performance or achievements of the Company
to be materially different from such forward-looking statements.
Accordingly, you should not rely on any forward-looking statements
and save as required by the AIM Rules for Companies or by law, the
Company does not accept any obligation to disseminate any updates
or revisions to such forward-looking statements.
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